Working after school and on weekends can be a very positive experience for a high school student. The only negative I could see is if the job seriously interferes with chores at home or grades. If it’s possible to work and still keep up with home chores and keep the grades up, I don’t see any downside.
The obvious advantage to an after-school job is the extra money that it provides. A student can buy things that she or he couldn’t afford before and perhaps that the parents also couldn’t afford or were unwilling to buy. More than this, however, it is possible to learn how to deal with money and learn the value of money by earning it yourself. When you go to buy something, the price represents so many hours that you spent working at some job. It has a whole different feeling from money just handed to you by your parents.
Working at an after school job, weekend, or summer job can instill a sense of responsibility in a kid. While you may be able to get away with being a little sloppy with your chores at home, when someone is paying you to do something, you’d better be doing a good job.
As a kid, I mowed lawns, did babysitting, and had two paper routes (not at the same time). I learned to be responsible and to do a good job for the pay. In high school, I went to work for a shoe repair shop as a shoeshine boy. I made some mistakes but ended up being pretty good at my job. I learned that it doesn’t matter if your job is classy or high level. If you take it seriously and do a good job, there is still a great sense of accomplishment.