If you're under 14, you're limited to things like babysitting or other similar jobs above. At 14-15, you can work at places like grocery stores, restaurants, movie theaters, and amusement parks with restrictions on the number of hours you can work. When you're 16 or 17, you can work in any position that isn't considered hazardous. And above 18, there are no restrictions. The Department of Labor has fact sheets on different types of work and the restrictions on children.