17. The problem here is that there are few real "entry-level" jobs anymore
Teenagers USED to do fast food/gas station/store-clerk/etc jobs AS TEENAGERS...part-time during school year, and almost-full-time during summer and then a year later they graduated HIGH SCHOOL and either went to college or found a REAL job that would be full time and that paid more..
There USED TO BE better jobs around the corner once you got out of high school.. The entry-level into working itself, prepared a kid to go to work after school, and once they got that real job, they usually had an on-the-job training period, and then they were pretty much set, if they wanted to stay there.
There used to be upward mobility.. even for the kids who did not go to college, but local mercantilism is all but dead (except for very large cities & random others here and there), and has been for a long time now. The kids who went to college were the ones who (for the most part) did not return to their hometowns, but spread their wings & scattered all over the place, depending on their field of study & their job opportunities all over the country (world).
Service jobs were never intended to be careers, unless you owned the franchise, restaurant, club, salon, store, motel-hotel, etc.
Entry-level is permanent for the service workers because they never get to go on to better things.