Because thats what older

He didn't remember the last war he fought as clearly as he thought he would. That was surprising considerinig it was when his final battle took place, and therefore one of his most recent memories of before. But that wasn't new. Most of his battles, after some time, ended up as nothing more than impresions of emotions with no concrete memories. But one thing he did remember with startling clarity were the eyes of those that called themselves Gods. Their eyes colder than the land he grew up in, even colder than the lawles plane of non-existance he grew up in. (And he still remembered that place as clear as if it was yesterday that he fell) Colder than anything he has ever expirienced as they wiped away the last of what was important to him. After that... after that it was nothing but hazy emotions. The despair, the anger, the sheer anguish and finaly... aceptance. Defeated aceptance that it will never be the same. That he will never get back what he lost. That is why he vowed this time to protect them with everything he has. Even if it means going against Gods once again. For he is their protector now. He is Kurosaki Ichigo and he will not lose his family - not again.