i dont think there is any real worry about durant's aging curve. his best comp, in terms of his profile, is someone like dirk, and dirk aged gracefully. durant's entire game is predicated on his otherworldly shooting. he doesnt thrive in trying to cook guys on the dribble and get to the line constantly. as long as he can rise up and shoot, he'll age fine, because no one can defend his jumper, just like no one could defend dirk's fadeaway. durant is a better athlete than dirk ever was, obviously, which helps his cause too
regarding the personalities, its really kind of hard to know. as im sure everyone knows, making new, close friends gets tougher as you get older. its just a different mentality. for pro athletes, im sure its even tougher. he has an entire infrastructure around him, but its all a professional infrastructure. when you are one of the most famous people in the world, it must be difficult to develop close bonds with people, especially new people, because you'll never really know their true motives.