That's a good point. Charging stations benefit from being a service station too though, with amenities and a cafe etc, since people want something to do while they charge. So a gas station is a better candidate than a parking lot when decisions are made for where to place the new charging infrastructure. Lots of other factors too of course.
I prefer grocery stores because I can run in and grab something quickly. The only problem is that charging is often too quick to do any real shopping, so a smaller convenience store makes sense also.
