My son is in the similar situation. I learned this with my personal experiences and you get more benefits from filing it.
1. Claiming as someone's dependent, they can claim as household , they get $500 dependent tax credit which means a lot
2. You can contribute your earned income to Roth which will give you up to $1000 tax credit. ( You can only contribute $4000 for your case)
3. File your tax, prevent ID theft and future Stress payments or any this kind of sorts
4. You can itemize your deductible per your $4000 income, such as medical, dental, eyeglass........
