Another .02c : Convenience Stores ( note the distinction) are in the business of selling all of the highly marked up product on the shelves inside. They are usually linked with a gas brand via a franchise agreement. Even corporate stations are making more money on the inside products than the few cents per gallon that our market economy enforces on gas prices.
I can think of just a handful of old fashioned Service Stations with gas pumps , let alone Gas Stations , that I've been to in the thousands of miles I've driven in the past ten to 15 years.
So think of putting a SC adjoining a convenience store as a step towards having a Convenience store, open 24/7 where EVs can charge. The Store is there to make more $, the 'fuel' for ICE vehicles is gas/diesel, for EV's electricity (of course) is a very minor revenue stream on the greater scheme of their business plan.