It's still early in this game, and the playing field isn't going to look like it now does for long.
I think that in the long run charging stations will be even more plentiful than petrol pumps are now, because charging stations don't have to deal with nearly as many environmental and zoning regulations as petrol pumps do, and don't have the overhanging cost of storage tank decommissioning. (It used to be that if a gas station closed they could just fill the tanks with sand, but I believe that in most places they now have to provide a means of funding the tanks' removal. Correct me if I'm wrong on that.)
Not only can existing petrol stations add and/or convert pump islands to charging stations, but any business with a parking lot has a potential new profit center just sitting there waiting to be implemented. That's not to say that every parking lot will have chargers. Location will remain important. But the simplicity of installation, low maintenance cost, and fewer regulations to meet will catalyze the market to fulfill the need.
That’s what PetroCan is doing. Level 3 DCFC stations are popping up right across the country at their gas stations. They actually beat Tesla in a cross country network completion. And it’s pay at the pump unlike the completions membership type setups. We have a bunch around us. We tried them once just to see how smooth it went. Worked well.