When is it ok to NOT file my taxes?

I’m a college student and on my FAFSA (for financial aid) there’s an option that you will not file your taxes. I was wondering, if my income is low enough (I’m a student, I work maybe 20 hours a week) can I just skip filing for this year? It’s also a hassle because I would have to file seperately for my job at home and my job at school because they’re in different states. Should I just suck it up and try to figure out how to file or should I say forget it to the (at max) $30 the government owes me??? Will I get penalized if I don’t file?