This is a situation crafted by ISPs to ensure everyone has to pay them individually. There was a time when wifi was being thought of more like water fountains in US buildings or public roads. People used to intentionally provide free internet access to others on a broad scale, but greed and fear inevitably took over. We could have ubiquitous open wifi if we chose to, and i would argue we are already collectively paying for the necessary hardware.

There has been a cultural corrosion of the public space and how it is though about in general. For example, libraries don't have "customers". They are services to the pubic with the mission of providing information access. If any place should have free wifi it's a library.