That is irresponsible. For studying in the U.S., students have to rent an apartment, purchase necessities and do lots of other preparations. If they are not allowed to stay in the U.S. anymore, who would cover the loss for them?
Things are not so cut and dry. Rent in the college town my university is located in is high and people have to sign year-long leases the year before they actually occupy the apartment due to high demand. Forcing students to travel home places unnecessary hardship on them if they've already signed an expensive lease.
