I don't get why people have this mentality. While it's true that there is always more to learn, and there are always those that are better than us - people don'

I don't get why people have this mentality. While it's true that there is always more to learn, and there are always those that are better than us - people don't get to be successful, rich, and/or have a high title in their late 20s and early 30s by waiting around to hit certain experience milestones. If Zuckerberg can be a billionaire CEO running a huge company at 30, you can make some judgement calls about your job in your mid 20s.