In some ways, this type of solution assumes one to be a young person, without obligations like e.g. a newborn to take care of, or types of mental illness that might make it untenable to like in a dorm-like environment further into adulthood.
For people who can sustain this situation, it does offer ways to have a higher quality of life even on a low salary. But a lot of people have families to raise and personal situations to manage that are fundamentally incompatible with it, requiring them to afford other living arrangements, creating a bigger stress factor upon on their budget.
