There's another issue that I noticed when I was a hiring manager. Some people find it difficult to interview and manage people who are older and more experience

There's another issue that I noticed when I was a hiring manager. Some people find it difficult to interview and manage people who are older and more experienced than them. Some feel uncomfortable giving orders to people who are their parents' age. Others feel uncomfortable with people who are much more experienced, maybe smarter than them. A young company with young founders and managers will tend to hire younger people more like themselves.