I've lived enough of my life sharing a wall or two with neighbors. Smelling their soup. Listening to them have sex. Wondering if their meth cooking was going to burn down our whole building. Having to go for a long walk to find some green space for a kid to play in. Having everyone knowing when I'm coming and going. Screw that.
Let me keep the option of living in a single family home. Build more of them so I'm not confined to a tiny few 1960's-era neighborhoods. I'm fine with having to pay through the nose for a little privacy and a backyard, given the alternative. Go build your apartments and town-homes over in apartment-land. Being able to reach out my window and touch my neighbor's house is NOT a selling point.