I don't see the disagreement with your parent. He has reservations about the age...

pdimitar on Oct 14, 2018 | parent | context | favorite | on: Research: The Average Age of a Successful Startup ...

I don't see the disagreement with your parent. He has reservations about the age and thus the experience of the person, not if they are already actively raising money and doing sales. You can do these at 30+ as well.