This thread gives me hope!
I’ve got a minivan and when it’s full we stop packing (plus I have to see out the back). I figure anything she really needs can either be shipped from home, bought at the bookstore or bought and delivered via Amazon. Plus she’ll probably come home with more than she brought anyway. But get back to me when I’m actually a member of the Hailey Dunphy Moving Co. (A Modern Family reference, not my kid’s name) 
One question for the minimalist movers: How do you avoid stuff creep from the other roomate(s)? If one person in a double doesn’t bring a lot and ends up with more room on their side of the whatever, are there issues with the overpacker wanting more room because they have more stuff?