My son's state university is forcing students to return in person. I fully expect a notable outbreak in some college to start a wave of media noise, followed by all the universities sending everyone back home again. Sucks because students are signing leases, moving crap, buying meal plans, etc, right now. Aside from the obvious safety issues.
Your son wants to be there in person and he is at no danger from the coronavirus... EDIT: *infinitesimal danger
And claiming that coronavirus poses "no danger" is simply untrue. You can claim that the danger is over-stated, but young adults can and do get COVID-19