I was bashed in the back of the head with a bottle, knocked out and then fell into a curb. It resulted in a severe concussion, broken tooth, cracked rib and 6 stitches to close the head wound. I got lucky.
I am 50, 6 foot and 200 lbs, trained in the martial arts and recover fairly well from injuries. I brick (rock) is known to break bones and crack skulls for even healthy adults. Kids and elderly can easily suffer broken bones, or even be killed.
Overkill? Not in my opinion. A deadly weapon is a deadly weapon, be it rock, brick, stick, pipe, knife or gun.
Personally I think a concealed carry permit should be automatic for anyone over 50 years old simply because we aren’t as young as we used to be and thugs know it and are more likely to target us.
That said, I really don’t think there should be any restrictions on guns nor any permit required.