I know this is a bit of an old thread, but I was thinking about it last night at a school event. My kids are teens, and at this point, few family are still mom/dad/kids. So many families are blended families, or kids are at events where one parent is there with their new boyfriend/girlfriend while the other parent is on the opposite side of the room with a smile than does extend to their eyes.
I think your DPs concern is VERY valid. I think that in the future, people will assume you are a blended family, and they won't bother to ask. Honestly, at this point, those question tend have very personal answers so most people just don't ask. Depending on whether or not your kids end up really looking like sibs, people will assume you are a blended family.
There's nothing wrong with a blended family, and I don't think it will ever cause complications (some kids don't have the same last name as any of their sibs or parents, the world is set up for it) but if you would like people to know that you are a traditional nuclear family, that's not a good way to do so. They will assume - they won't ask
I really like that we all have the same last name. It wasn't a big deal to me until recently, but I like it.
im still not sure on this. i think i would like our girls to have my last name and our boys to have his. i would totally just hyphenate our names, but that would be kind of cruel. DP's name is very unusual and mine is already hyphenated and german/polish. so thats three hard to spell, hard to pronounce last names. they actually all sound pretty neat together and DP thinks we should hyphenate anyway lol. he doesnt want any of the kids to have just my last name. but i don't really want to be the only one with a different last name. even if we do ever get married (not likely) i would not change my name.
i liked having a hyphenated last name as a kid, though my brother and i usually went by my mom's last name to make it easier on people. my brother still does, but i usually use both now. we were a "nuclear" family, my parents are still together, though they never married.... so it doesn't seem unreasonable to me that our kids would share our names in some way.