I'm reminded of when Blockbuster wiped out all the little video rental places. Even if existing gas stations install chargers, most EV drivers are going to prefer to charge someplace where it's nice to spend an hour or two, and whoever creates those places is going to take all the business.
Many places here in Germany have typically 1-2 parking spots dedicated to charging EV. (Free to use)
I believe increasing their number of chargers as the need arises is the main way this is going to develop. Basically no central gas station anymore as we know it but a shop with 1-2 chargers. If lots of shops do it, it becomes like decentralized charging.