It takes a lot of determination to do a startup.
This is how a 52 year old guy answered that question:
Wheelchair hiker tops California's 3rd highest peak.
Here is what his friend said:
Bob wheels to the top, proving me way wrong.
BOTTOM LINE: If you think you have the determination of Bob, then you are ready to do your startup. Demonstrate that to VCs and they'll line up, with open checkbooks. It adds power to your personal unfair advantage.