I've done multiple successful startups, have a pretty good record of securing funding, customers, and exits, so I'm confident I'd be an easy bet for YC, simply based on track record. I'm also confident that I'd enjoy YC and learn a lot (even though I expect I'd be older than most of the kids there).

However, I've mostly cut out travel since I've had a family. I turn down speaking engagements and conferences, and limit to a very small number of trips a year. It's worth it.

I'm certainly wouldn't advise anyone to try explaining to their child why they won't see Daddy or Mommy for three months.

If I were to categorize the mistakes in my life, most involved prioritizing work over family. Older people always tell younger people that, and younger people never believe it.