Your choices at 15 on where to work are limited due to your age. In our area Publix grocery stores will hire you at 15 to bag groceries. You may want to try your local grocery store to see if they do the same. You can also work as a camp counselor or have a paper route. I know kids who also set up their own businesses cutting lawns so they don’t have to depend on someone else for a job. Another option is to baby sit for couples who have small children.