re: Used to see teenagers mowing lawns all the time.
Baggers at grocery stores. Theater ushers. Gas station attendants. Kids working in stockrooms and in stores.
Maybe it depends on where you live, or how much "non-local" labor is handy, but I don't see this around here at all. Regulations have made it almost impossible to simply tell a kid, "sure, come to work. I'll pay you three bucks an hour." By the time you get into the paperwork, why bother?
People wonder where the work ethic went. God help us, we've been importing it for years.