Differences in how they bring them up, no. Some people talk about how adoptive parents mistreat their adoptive children, and I laugh and say, "So you think real parents don't mistreat their children at all?" I understand where you're coming from, sazza, and I would definitely feel upset if I were an adoptive parent and someone told me that I could never replace a real parent. >__> Personally, NO, I do not feel that there is a need to include the word "adoptive" all the time, unless you're dealing with formalities. Come on, in most cases the child wouldn't have known any other parent!