“I am now 67 and still have tension when I see a group of teenagers approach me.”
Hopefully you live in a state where when approached, you have a loaded piece in your holster as well.
I always carry heat when I go anywhere near a high school, regardless of time of day. If any of them try anything violent, I unload. Then I decide if I should bother calling the cops.
I only wish shooting lessons were mandatory in high school. Or for that matter, military service.