I had discussed it with my wife. I didn’t want her to feel obligated to do so, and I know it would be awkward at her work to change her last name, but ultimately she wanted to - so I guess that’s one reason?

There is a degree of closeness from it that I think some people appreciate. If you all share a last name, perhaps you feel closer as a family? I’ve known some people that don’t share the same last name as their kids, or people that went double-barrelled, but didn’t with their kids, and some of them had either changed later, or regretted not having the “same” name.

I’ve dated a few people who seemed progressive, and I’m a woke-ass queer, but names were a sticking point. I have a complicated welsh travesty of a name I would happily trade in for something shorter - so when I got engaged and I didn’t like his name either, and neither did he, I suggested we both pick something new and change our names together. I mean, if it’s no big deal for me to change my name, it shouldn’t be for him either, right? Anyway, I’m single now.

A. Many men would not marry a woman who didn’t take their name.

B. Makes parenting more difficult in social settings by not sharing the last name of your kids. I.E. Picking up your kid at school or making medical decisions about kids and having a different last name as the child forces you to jump through a lot more hoops.

C. Women tend to grow up knowing they are going to change their last name it’s not even an afterthought. My girlfriend told me her and her friends would often talk about what their name would be if they married a guy they liked.

D. In some states it is very difficult for a man to change their last name but for women the processes is already in place.

Especially in the digital age, lots of people have digital usernames like SarahSmith1727373. So the last name clearly doesn’t mean much anymore…

but you also just used 2 names in your example… others here already said the right stuff, but I reiterate, it’s a lot of symbolism helping create feelings of unity in a family unit, but also there are legal issues/benefits for changing a last name.

I am originally from Spain but have since moved abroad where partners changing names is common.

Personally I love the way it is handled in Spain, where you get your family name at birth and won’t be changed by marrying (you could change it but it is not normal to do it when you get married). And the family name is always a combination of both parents. Traditionally it was the first family name from the father and the first from the mother, but nowadays it can be decided which goes first. So officially everyone’s got two family names, one from each parent. Unofficially you can just go as far as you want, so you get your given name, then first family name from one parent, then first from the other, then the second from the first, then the second from the second, etc. So if you track your family tree you can take all family names to make a huge list of them, which is not used for anything but somehow makes you be more attached to all those roots without names being lost.

Of course that makes it a nightmare when going to other places, everyone thinks your first family name is a middle name and dealing with two family names officially can be a pain. And let’s not go into naming your kids then…

When I was marrying my wife she asked me how I felt about her changing her name to mine and if I wanted her to do that. She got her father’s name but her mother divorced him later on and changed her name back and my wife’s father was not much part of her life, so she was happy to just change it. I told her that for me that custom is a bit strange and I didn’t need her to do it but would accept it if she wanted to (knowing her background), so whatever she did I wanted it to be her choice, but notice how in Spain people who share family name are siblings, as it is extremely rare for two persons to share both first and second name if not related, so sharing family name with my wife is really odd in a way…

At the end she changed her name, but because in this country you only have one she only took the first one. While our kids had to take either both of mine or hers (we had our first kid before us marrying and her changing name, so we chose mine), so now we all share the first (and only, in the case of my wife) family name but me and my kids have both my first and second family name (any kids after the first kid must get the same name).

If that was not complex enough, as I got my kids both nationalities, in Spain the rule is always first of one parent plus first of the other parent, and as the first one was born before us marrying, in Spain he has a different family name than he does where we live.

Can’t speak for all women, but I (and I imagine some others) changed my name because I knew I’d be having kids and didn’t want there to be any confusion. Like, if I’m traveling internationally or if my kid ends up in the hospital, I don’t want one of us having to fish out a birth certificate to prove we’re both the parents. Also I’m of the percent that absolutely hated my long last name so the chance for my name to be shorter and nicer was a no brainer.

She takes my hoodies, my snacks, my cash, the blankets… why wouldn’t she take my name?

(She didn’t take my name.)

Many people are fine with changing their names and the ones that aren’t won’t do it. There’s your answer. Don’t rag on the people that like changing their name.

My SO and have talked about possibly changing both of our last names when married. Neither of us are tied to or really care about our current names for any reason so why not just start fresh.

It’s pretty helpful for medical emergencies and getting through border police as a family.

I think the only correct answer will be “there are lots of different reasons”.

My wife took my last name, even though it’s not a good one and I suggested that we pick a new one.

Here are a couple of her reasons:

1. She wanted us to have the same surname.

2. She was very close friends with my cousins growing up, so the name didn’t seem weird to her.

3. Tradition - she’d always assumed she would change her name to her husband’s name, so that seemed the most normal thing to do.

Tradition, mostly. When I discussed this with my fiancee she just wants to - I certainly don’t care. My one cousin went with both hyphenated, in alphabetical order so hers was first.

Makes things easier for both parties when medical issues arise, even more so for parents. And I genuinely believe that a lot of women don’t know it’s an option.

I actually didn’t change my name when my mom married my dad, so you can really just say “no.” i was in middle school when I decided that, but whenever my dad tried to do anything, he had to jump through hoops. 🤷🏿‍♀️

I took my husband’s last name because it was important to him, and I wasn’t super attached to mine. Also, it has 2 Z’s in it, and that’s one of the coolest letters.

Pew Research has survey data germane to this question. As it stands, a clear majority (79%) of opposite-sex married women changed their family/last name to their husband’s.

But for never-married women, only a third (33%) said they would change their name to their spouse’s family name. 24% of never-married women were unsure whether they would or wouldn’t change their name upon marriage.

From this data, I would conclude that while the trend of taking the husband’s last name is fairly entrenched right now, the public’s attitude are changing and we might expect the popularity of this to diminish over time. The detailed breakdown by demographic shows that the practice was less common (73%) in the 18-49 age group than in the 50+ age group (85%).

However, some caveats: the survey questions did not inquire into whether the never-married women intended on ever getting married; it simply asked “if you were to get married…”. So if marriage as a form of cohabitation becomes less popular in the future, then the change-your-family-name trend could be in sharper decline than this data would suggest.

Alternatively, the data could reflect differences between married and never-married women. Perhaps never-married women – by virtue of not being married yet – answered “would not change name” because they did not yet know what their future spouse’s name is. No option for “it depends on his name” was offered by the survey. Never-married women may also more-strongly consider the paperwork burden – USA specific – for changing one’s name.

So does this help answer your question? Eh, only somewhat. Younger age and left-leaning seem to be factors, but that’s a far cry from cause-and-effect. Given how gradual the trend is changing, it’s more likely that the practice is mostly cultural. If so, then the answer to “why is cultural practice XYZ a thing?” is always “because it is”.