Since they don’t really have to work due to their parents’ income but would work at *this* job for other reasons like the social factor, provides a tangible benefit, looks good on their college application.
Country club (to learn golf culture) as a caddy or server.
Upscale bistro/lounge server.
Door to door canvas for electricity, home security, census etc.
Job at a vendor that is beholden to parents company (bank, advertising agency etc).
Camp counselor.
Private tutor.
Event staff for local festivals.
Catering staff for private functions.
Sports coach at kids elite camps.