The Greatest Developer Fallacy Or The Wisest Words You’ll Ever Hear? 15 years ago
Unfortunately, the vast majority of older (65+) people, despite their experience, are simply unable to keep up with technology. On that scale age matters, and 30yo can't be compared to 65yo. We all will be there.
That's neither good nor bad. That's just the way it is.
However, I know people that successfully started their startup company in their 50's.