My first job that required paperwork was working at a summer camp, which was from 14-18. When my father took the golden parachute from his job and opened a small business for fun I helped him a lot.
My only other job as a teen was working at Honeybaked Ham one Thanksgiving through Christmas season since my friends were working there and I made a deal with my parents that I'd buy my snowboard if they paid for the trip. In the end they paid for all of it and I used the money to visit my college boyfriend at college under the guise of "touring colleges." They wished they hadn't encouraged me to get that job and buy the snowboarding gear on my own because they couldn't prevent me from using my own money to go to Colorado. I also would have never met said boyfriend if I didn't work at the summer camp. We broke up because of that trip
and I think my parents were finally able to exhale.