[bluGill]

There are not enough places to fill a natural gas car. I know of a few, if you buy a natural gas car you plan all trips around filling up - and a lot of trips you have to reject.

For every public natural gas pump I know of, I know of 50 public EV chargers. Plus in the worst case you can plug an EV into a regular outlet (overnight you can get enough range to get someplace with a faster charger).

[saberdancer]

I'm no expert but I think when cars are converted, they can run on both natural gas and on gasoline. Gasoline is used to start the car. Wouldn't that solve the range issue?

Obvious problem in USA is availability of natural gas at gas stations, but that is a chicken and an egg problem - would be solved with more demand.