Am I correct in my recollection that American electric vehicles do not have a common charging interface and therefore cannot use any electric charging station?
I think you are. Around here the Sheetz stations started putting in Tesla chargers. In the 60s guys hung out at the gas station in their hot rods and smoked marlboros. I saw the modern equivalent, guy charging his Tesla and vaping. THat's it, send the meteor.
They are at walmarts too, and I know the owners find stations by the app, but if there is a charger anywhere else a tesla jockey isn't going to walmart. Dumb business decision, they will never get the investment back.
I consider a business out here in the middle of nowhere with a charger. But sometime there will be a Tesla and Edison or a VHS and Betamax situation, a charging evolutionary dead end.