Generally speaking, obviously there will be exceptions. I have a few friends who are step parents and I am also one myself. The ones who came into their stepchildrens lives when they were older (as in teenagers) seem to have a much more difficult time of it. Mainly in the sense that they just can't bond with the children and end up hating them being around (because let's face it, teens are difficult). Whereas, in my own scenario, and that of others I know, meeting my DSC when they were younger children (youngest was 6 when we met), I at least had the opportunity to meet them when they actually wanted to spend time with us, were quite cute and sweet still, wanted to come out on family days etc etc.. Looking at my DSC now, as teenagers who rarely have any interest at all in spending time with us and spend 99% of their time either with friends or in their room, I don't think I could really bond with them if at all if I were to have met them now and I can understand how if you entered the situation now you could end up hating them being there having all of the shit that comes with teens, attitude, mess etc etc but none of the memories / bond from younger years spent together. Aibu to imagine most of the time it's far easier if you "blend" when children are younger rather than older?