It always felt to me that startups are best for the under 25s and the over 45s. In between you have so many other commitments it's a challenging balance. I say

It always felt to me that startups are best for the under 25s and the over 45s. In between you have so many other commitments it's a challenging balance. I say this as someone who spent most of his 30's & 40's in startup land.