[BlueTemplar]

> Families would perhaps have one car instead of three

That's cute. No, most families would own NO cars, like most families don't own an helicopter these days.

P.S.: I'm pretty sure that's already/still true today, if you consider the world rather than the richest countries.

P.P.S: And I'm pretty sure that it's only in USA that the idea of most families having three cars wouldn't be considered outrageous.