I'm 21, turning 22 in less than a month. My earned income for 2020 was about $8,000, but I live off of my VA education assistance (chapter 31) and disability (together roughly $1700/month), both of which are nontaxable and do not produce any sort of tax forms. I didn't have any issues with filing in 2019, in which I was in the same boat, and in 2018 I was on active duty in the military (only served 1 year due to injury), which I didn't have any issue filing for either.
