Problem is you need to use an app to find a place to charge. Gas stations have big signs and they are just for every highway exit anyway. Electric vehicle charging stations are not advertised from the highways and so you don't know where they are unless you have an app. Using an app while you're driving is not safe, which means that if you're taking a trip on an electric vehicle, you have to set your app up before you start driving to find the next charger. This is much less convenient than what you do with a gas station where you just drive until the fuel gauge starts getting low and then you find a nearest gas station.
Ultimately, yes, an electric car can go just about everywhere a gas car can. And there are some places that a gas car couldn't go either. However, a gas car is still going to be significantly more convenient if you are making a road trip.
Still, nearly everyone in the US lives in a family situation where there's more than one car. Having one gas car for those road trips may still make sense for a lot of people. However, all the other cars certainly could be electric because almost nobody is going to be driving long distances in all their cars every day.