The brain loses the ability to inhibit itself as you get old. Similarly teenagers haven't developed that ability yet. Thus, stupidity is seen at both ages. Of course, there are folks like that across the entire age spectrum.
My daughter tells me that a great skill for the old is to inhibit your mouth:
1. In the check out line.
2. Talking to the wait staff in restaurants.
It is sad to see folks in a restaurant asking if their favorite wait person is there. The wait person really doesn't care beyond the tip.
I've seen an older person march to front of the line in Walgreen's to buy a card. When told to get to the end, the person threw it on the ground and stomped.
On the other hand, when my mom passed away, I went down to Florida to take care of her affairs. I had to go to her bank. As I was walking across the parking lot, an old man in baggy bermudas, classic Florida oldster, crumpled into a sitting position under the ATM. He let loose a stream of urine that reached across the parking lot. If you ever saw someone who looked stone cold dead, it was him. Folks ran towards him to help. I went inside to the bank to talk to the representative and I was a touch shaken. She said it happens everyday.
Being 71, I am usually annoyed by something. Carrying however, has been a damper on expressing emotions in public. Luckily I can still shoot the Glocks and 1911s, haven't moved to a Grandpa gun yet.