Yeah that's fair, on the other end I think cities should take noise pollution and reduction seriously. Banning things like fireworks and gas powered leaf blowers can have a bigger impact on mental health than many people realize.
Yeah sure but in the meantime there are hundreds of millions of us living in existing housing stock (and many rent), if a room device worked nearly as well as noise cancelling headphones I'd pay $2k for it. That's still fairly cheaper than renovating and soundproofing an entire room.