Teenage labor participation is at some of the lowest levels ever. Most teenagers who would have otherwise gotten jobs, are now trying to do things to pad out their college applications. My suspicion is that you would have a hard time paying low wages to teeneagers at the moment.
Even a few percentage points extra would be a big positive to society, since presumably the teenagers will learn real world lessons at a faster rate than padding out college applications.
https://fred.stlouisfed.org/series/LNS11300012