Many studies have shown that older entrepreneurs are more successful. The canonical example is Ray Kroc, who started McDonalds in his fifties.
The question's that matter are internal. Do you still have it in you? The one advantage youth has is energy. Can you work the 7-9 schedule? Can you make it through the 84 hour weeks? Are you passionate enough about your idea to do that?
That's what matters. The rest is just navel gazing imho
We’ve repeated this story so many times that it’s
starting to wear a little thin, but here it goes
again: Basecamp was created wit 10 hours/week of
programming time and as a 3rd or 4th project alongside
paying customers for the designers over the course
of about 6 months.
In other words, we didn’t drop everything we had
to create Basecamp, and you don’t have to either.