^^^ Exactly. Density should actually reduce the need for mini-dorms. Though, personally, as long as one person to a bedroom is observed, I fail to see what difference a “mini-dorm” makes. Unless you’re an old who thinks that music after 9 pm is a mortal sin worthy of a police choke-hold.
If I didn’t live in a major city and I wanted to stay in the US, a college town would be a close second as far as the environment I wanted.