That’s not exactly true.
You can either go to a school without an on campus requirement - or you can go to a school that has - for example - if you go to a U of Alabama and are in the Honors College - you WILL have your own room and a shared with one person bathroom.
Other colleges have similar Honors or otherwise.
And many have no residence requirement.
This really isn’t that big a deal but you’ll need to be flexible on where you are willing to go.