This is absolutely correct.
I live now in a well-made townhouse. I can’t hear the neighbors, ever, even the living room, or the kitchen. Or the bedroom! I love this place compared to my last crappy townhouse, or any apartment I’ve ever been in, ever.
Unfortunately, where I live it’s very hard to find a well-made apartment or townhouse. I love the idea of an apartment or townhouse where I couldn’t hear the neighbours no matter what they were doing, and I couldn’t smell their cooking, or be exposed to smoke when they’re smoking, and so-on. But, that just isn’t realistic. Even if laws were passed to make that a requirement as of today, it would be decades for the existing housing stock to be sold off.