Dunno, but I recall that everyone wore the overalls half-down (unbuttoned on one side). If you unbuttoned all the way, wouldn’t the overalls fall off?
I’ve only ever seen skinheads wear suspenders down. Usually with a t-shirt, jeans, and Doc Martins.
I wore suspenders in 8th grade. Another in the rainbow-Mork set. I wasn’t popular or unpopular, kind of in-between. I wouldn’t wear them now because my boobs would be in the way.