V.T.
If you son is just turning 16 and this will be a first job then I would suggest Six Flags since you are in St. Louis. This provides employment that works around school schedule or other personal activities (sports, family vacations, etc.) without putting pressure on them. My son works at Worlds of Fun this year, which started out at the job fair they held in March. He thought he would be the low man on the totem pole and start out sweeping the grounds. The people doing the interviews have a way of drawing out the skills young adults have and they determined my son had the skills needed to fill the only position in the electronics maintenance area. Working at an amusement park also provides an outlet to expand the group of friends one has and allows them to have a bit of a social life while learning how to be an adult. Keep an eye out for job fairs like this around March.