For those who didn't change their name...

I didn't change my name and I really don't want to change it.

An issue that will arise in a few years is what our children's last name will be - I want them to have mine but DH won't agree which I understand.

I know it's just a name but I feel like they'll lose my culture if they have his name.

Both of our last names are too long to hyphenate. I think I'll end of agreeing that the children should have his last name but I won't be happy with it. And then I'll feel weird to not have the same last name as my children.

I didnt change my name. We are not planning on having children . . . but you never know. I would probably agree to have the kids have DH's last name.
My middle name is my mom's maiden name - so I would probably do that

Our plan is to hyphenate the kids' names. (I think they should get my last name, but DH won't go for it!)

Everybody has this knee-jerk reaction that hyphenating is bad, but I'm not really sure why. Plenty of British names are hyphenated, and they sound fine (all those Rhys-Davies and Rees-Joneses). What's the difference between that and just having a really long last name?

But if you guys both have long names, I can see why you wouldn't want to hyphenate. I think the only option then is to do the Baby HerName HisName thing. Or mix it up and put his name first and your name last!