For many fighters, it is tough to let go... it isn't necessarily "ego" or money... but the fact that many of them define themselves as fighters. Same sort of thing happens to parents when their kids take off to college... some of them get "empty nest" syndrome and even take in other kids to fill the void. Once you define yourself as something, it is hard to simply let go and move on into another life.

Some guys move on as boxing coaches - but a lot of fighters want nothing to do with coaching.