"You can always tell a working class person by their teeth, which by their late 30’s will have started falling out." that seems to me a tragedy especially in s

"You can always tell a working class person by their teeth, which by their late 30’s will have started falling out." that seems to me a tragedy especially in such a rich country as USA. wonder if its lack of dental cover, or soft drinks , or bit of both? I remember as a kid at school when someone's baby tooth falls out and they bring it in, leave it in a glass of coke, and in frighteningly short time the whole thing is dissolved.