Tangential: I live in a rather rich suburb in the US, there are barely ANY billboards, drive ~10-15 miles away from the city everything is littered with billboa

Tangential: I live in a rather rich suburb in the US, there are barely ANY billboards, drive ~10-15 miles away from the city everything is littered with billboards. Most of them advertise what I can only summarize as "probably spam". Tt is an interesting corralation and I would hope the state would just ban them.