As you get older, probably you are the one doing the evaluating and realizing you won't be a heart surgeon or discover a major math theorem (that was two from my own teenagerhood). Mostly people not you don't give it two thoughts. But whatever. Learn from your life and don't judge it. I mean sure being old is held against a lot of people but that's just some political social change you can work for a little. Other people's opinions aren't the truth and it seems hard to get a few decades in and not realize this. You can make your own chances each morning, especially to be free and to be helpful to others.