It's chicken shyte really. Once a man hits 40, leave him alone unless he poses a legit threat.
I've been jumped a number of times in my life, it was part of growing up where I did. I forgave these people since I was never stabbed or shot. Hopefully they found a righteous path in life.
There is no honour for anyone to abuse someone who they know can't fight back. When an old man says "I wish I were half my age so I could kick your ass" they probably are speaking the truth. After all, no tough guy is going to bully an older man.
It's also why I don't want to see Tyson get back in the ring. It's over man, hang them up. It's not like playing soccer or tennis well past your prime for the challenge and enjoyment. You are being hit, the body has limits.