Okay, how about you’re a full time student and have a part time job .. then in the summer you find full time work until school starts up again. Oh and you live in a dorm? How about living in a homeless camp?
Come tax day, who what state do you file in?
You look up the legal definition of “residency” in each state for voting and for paying taxes. They’re easy to find.
Don’t pretend that returning to rule of law a complicated thing.