I think you're missing the bigger point. Most people work on problems that they've seen or experienced. For the young, it tends to be dating, social media, or some sort of e-commerce. They chase trends and hype. When you gain experience, you get exposed to an entirely different set of problems—problems with workflow, business processes, and general efficiency. Problems where you can deliver real value.

This was brilliantly expressed in this blog post [1]. Both the young and the old, stand at a disadvantage. Experienced folks have a better idea about worthy problems, but they're shackled with liabilities and lack of time commitment. Young people have a lot more freedom, but they don't have a good idea about the problems that are worth it.

[1]: http://000fff.org/the-problem-with-problems/