The Hacker News crowd might be interested in how I charge whilst not having off-street parking, in central London. They converted all the street lights to LEDs, meaning there is excess electricity delivered. So they put plugs on the posts. Works brilliantly.
Your explanation doesn't make sense to me. How many watts does a non-LED light consume vs charging an EV? A good sized light is probably less than 500 watts. To charge an EV you need thousands of watts. The street lights must have been wired with a massively over-designed electrical conductor (and upstream infrastructure) or there would be no way to charge EVs in any kind of density. Based on the power draw of EVs, I don't see how it can work without putting in new cabling.
That picture is from where I live, Brixton in London - not exactly a low crime area.
Cable is locked at both ends. I've never tried it, but strikes me you'd have to be particularly stupid to put a cutting implement through a live electricity line.