Except when you live in a 200 year old house like I do with 1 foot thick stone walls. I don't have to worry about "polluting" my neighbors because my nearest neighbor is a mile away. Any "standards" ought to not just assume everyone lives in dense, multi-family residences.
Yes, but it's called designing for the most damaging worst case. Both ultra-dense urban and houses like yours are corner cases, but on opposite ends of the spectrum.
For you, I'd suggest looking into Unifi AC APs (the lowest end ones are $99 each, the Pros are extremely nice), and then put them everywhere you want signal.
