So if you have 7 people living in a 250m^2 house is that worse than 1 person living in a 100m^2 house? Should they pay much higher property taxes?
Probably not. FTR, I never said they should. I didn't propose any dependency on the number of residents, but this does not imply that I think there should be none. There are probably many other variables to take into account, and I didn't want to state a complete proposal. Just one of the many criteria.
That said, I believe that road space has different rules than housing space, so it is hard to compare them directly.
I am Italian and live in Belgium, in case this gives more strength to my argument. I also have a car and pay European prices for it. Of course, I try to use it as little as possible, which is good.