If they build a network of chargers using the SAE J1772 CCS (Combined Charging System) chargers that support 240 V 30 amp AC and 350 kW DC charging, then it will be very popular because just about every EV manufacturer outside of Tesla wants to support J1772 CCS.
Ninety percent of Tesla owners do their charging at home or at work.
In addition, there is this:
https://electrek.co/2019/04/03/tesla-ccs-adapter-first-look/
And tesla will be forced to comply or compete. In the ensuing melee a victor will emerge and beta max will die again but a lot of capital will be burned up in the meantime and investors will become losers and winners... again.
Tesla provides a J-1772 adapter with every car. It fits between the Tesla input plug on the car and the (e.g.) ChargePoint charger device.