My dad did the same with me, I moved out in July 2019 and have been on my own since then. When I did live with him, I paid my own bills: My phone bill, part of utilities, food, and clothes. When I filed my taxes this year as of 2020 for the year of 2019 (first time on my own) he told me to, “put down that someone can claim you” knowing that I had no idea what that meant.
