I think JFK really did have an influence on going hatless. My Father, and Grand Father always wore hats when going out in public. I was in high school when JFK was killed and I don’t think any of our generation wore hats.
As a matter of fact I still like hats. I am 6’3” and definitely do not need one but still wish they were more popular.
One thing I can’t stand is guys wearing baseball caps backwards to show they are cool.
Well, there are times when you have to wear a cap backwards for it to stay on your head. Like in your bass boat, four wheeler, motorcycle, fast horse and etc.
That said, I have this theory that when you see some kid in a car, with his cap on backwards, he's likely in a methadone rehab program.