Everything that’s required to set up the street lights in the first place seems to be a much more difficult problem than “How do I now add these things to something that’s already stood up”. Plus, if a local municipality or power company puts them up, now they can charge access fees to all the companies that want to use them, so there’s a financial benefit to making it happen.You need access points on top of every street light, and that's not going to happen in the suburbs.