Manners!
When I was a kid, even if you were the first at the bus stop, when the bus came and an adult was present, you let the adult on first. Mainly because manners insisted that a child should give up their seat for an adult. My wife told me today that while at work in a radiology practice full of sick people, children accompanying an adult because of school holidays occupied seats with their parent while sick adults stood and could not sit on the empty children's seats available for children because they are too small.
and . . .
R.I.P.
Good Manners
Born in antiquity
Ignored to death by Generation X