when you need a charger there is rarely any choice of location. Charging at home doesn't help when you are not home. Those rare public chargers is what you need and they can be hard to find.
This varies a lot based on where you are. For the trips I usually take around in Texas where I need public chargers, I actually usually do have a choice of chargers. I understand this isn't universally true in other parts of the US though.
