For those who are adults and who have siblings, I was wondering what the relationship is like. How does one's relationship with siblings change after they're all adults? Does one's family become the most important and siblings and their families just become like friends (or maybe a little more)? The reason I ask is because I think my relationship with my brother is deteriorating and I find that very sad. We were never really close, partially because I always tried to be a role model for him, which I think was a very bad idea. There's still something in me about him being my brother which I think will never go away. However, if he wasn't my brother I don't think we would ever talk or like dealing with each other in any way, since we're opposites in every sense of the word. Does this happen to people? I am worried about him not turning out to be a good person when he gets older (he's 17, I'm 20), and I don't think I can do anything to help it. We usually don't want to deal with each other in any way and it's only getting worse, but the fact that he's my brother just breaks my heart. I don't know what to do...whether I should treat him as my brother or not. I believe that in the future, if he stays the way he is, I will avoid him completely and we won't be like brothers anymore. I don't know if that happens to people or not...both of my parents seem to be close with all their siblings, but I don't think my brother and I will be the same . PS. One piece of advice to those having kids: Let brothers and sisters be brothers and sisters. Don't tell one to be a role model for the other.