There are four existing models for expansion of charging infrastructure:
1. Open marketplace. This is the US model (with the two exceptions below). EVgo and Chargepoint etc have to compete and eventually make money.
2. Closed network, subsidized by the cash raised for a do-it-all company. This is the Tesla model.
3. Government subsidies for charging infrastructure. Europe; especially Norway.
4. Electrify America.
4. is interesting, but cannot be relied upon because it's not likely that another manufacturer will fukc up on such an epic scale again.
3. Seems like a no-brainer ... results in those countries speak for themselves.
2. Is not sustainable ... please post to the infamous Tesla in Trouble thread.
1. Yes, eventually. But why not jump-start it with 3.