We have an EV that charges on 110v current. It’s not fast, but plugged in the previous evening it will be ready to go by morning. Not a huge draw on the grid off household current. Obviously, just like you point out, more EV will increase demand…but charging off 110v overnight isn’t going to be as demanding as a “gas station” for EV that all want fast charge for people that maybe don’t have charging access otherwise.
I imagine there would have to be some sort of organized system to pick charging time slots via the local electricity provider in order to keep the grid stable. EV owners could certainly get an electrical timer or via the EV manufacturer app to set a charging time.