Gen Zer here- I still have the 1st year contact list from when I started secondary school in 2017, I had a look the other day & noted more than 1/2 mothers had kept their names, but the children always have the dad's name.
I get why, but personally I prefer hyphenating tho it could be a mouthful depending what the names are. After all, if the woman doesn't have to change her name by default, why should the kids have the dad's name only by default? I have my mum's name as my father has never been around- I like that it connects me to my grandfather, who was Polish & passed when I was 3 & my father has a very boring surname so even if he had been nice I would've preferred my mum's.
I get the arguments for all having same name, my friends w different names from their mum's often have airport issues& it' good to show unity. I just think personally that the most equal way is to use both names, provided they work well together etc
After all, despite the arguments that it doesn't impact equality, it's nearly always the woman who has to change & get used to a new name. On the father's name argument, yes, normally her name will be from her father. But why should that mean she should change her name to the name her husband probs got from his father? Would her husband change his name to hers? Why should it by default be her who changes? If she prefers her husband's name, sure. But if you like your birth name, I think it's a poor argument to say it doesn't matter as it's your father's name, when you'd probs not make that argument to a man.
I'm lesbian myself & pretty sure I want kids. Who takes whose name then, according to the posters who say the woman is the one who ought to change? Hopefully hyphenating works well, I think I'd choose that?