Even in a single family detached home my last neighbor was a nightmare. He was a drunk and would be loud and throw bottles into my yard and start arguments any time anyone said anything. He was a renter so eventually he got into bad terms with his landlord and she booted him. I would dread the thought of loving even closer to someone. At least I had a fence and some concept of space from him. I could only imagine the harassment living wall to wall with this guy. For me single family detached homes are not wasted space but the minimum people should strive for.