@darthanubis I too am a fairly young pilot, so I’m not the geezer you’re describing, but when you make comments as you have, painting older pilots in the light that you are scared to share the sky with them, it does demonstrate that you feel more confident in your abilities than in theirs. There is a local pilot here in his 70s, but I’ll take him over pretty much ANYBODY on this forum eight days/week! Former B-52 pilot, one of the original sixteen B-1 pilots, and has been instructing probably longer than you’ve been alive.
You, on the other hand, described yourself earlier in this thread as a low time pilot. That means that you have a LOT to learn yet: (don’t get me wrong, my Commercial, CFI, and CFI-I tests are constant reminders of how much I still have to learn too!)
The FAA describes 5 hazardous attitudes for pilots to avoid, and your posts seem to indicate at least a couple of them. I’d be more nervous to share airspace with a low time pilot who thinks his certificate and youth will save him from catastrophe rather than a guy who has been flying for half a century and knows what to look out for and has learned from a few (or more than a few!) mistakes over those decades.
As far as thick skin, I don’t think a pilot telling you that you could use some humility is a demonstration of getting their feelings hurt, I think it is evidence of older and wiser members of the community trying to help you reframe your mindset before it gets you into trouble.
At the end of the day, you passed the same private pilot exam as they did (actually probably an easier version with no NDB training, etc), their medicals get done on average twice as often as yours, and there is a higher chance that they have pursued additional training and ratings than you. Medically speaking, is there a higher risk of significant medical events as we get older? Sure. But with the sharp uptick in myocarditis and cardiac events in young people over the last few years, you are certainly not invulnerable either.
So perhaps, rather than portraying aging pilots as those with whom you are nervous to share the sky, maybe you should get to know some of them, ask them questions (and then listen to their responses), and generally view them as a resource rather than a liability.