My DH has 2 teen kids which do not stay with us ever. No more than a few hours at a time, not even weekly. We also have 2 bio kids together. Is it fair for the kids that don't come over to get to go on vacations with us? I can't say they "contribute" anything to the family as far as doing chores, helping around the house etc. like we expect our other 2 kids to do. Also behavior isn't great to say the least. We would like to just take our bio kids on a vacation this year but don't know how to approach that. Or do you even approach it since there's no set visitation with them? They just come whenever. Something for my DH to handle and decide I"m sure but would like other's thoughts on this..