I was part of a startup when I was 20 and I knew nothing. I didn't understand business, I didn't understand money, I didn't understand value, and I barely knew

I was part of a startup when I was 20 and I knew nothing. I didn't understand business, I didn't understand money, I didn't understand value, and I barely knew how to develop software in a competent manor. When I was 20 it was still okay to sleep on a couch for months because I saved $80, I could barely comprehend how insignificant $80 is to a company. I was making something cool that I wanted and the fact that the company wanted it too was neat and frankly lucky. Given another ten years of just living your knowledge of how the world works will grow considerably. Maybe you do become a little more risk averse, but you definitely become a lot less stupid. When you are 20 you have a very hard time judging how good an idea is so one is as good as another. Given enough 20 year olds one is bound to be lucky :) When you are 30 you should be able to toss out many ideas most of which are just bad which is why I would expect them to fail less.