How do you think a gas station in the middle of nowhere runs the gas pumps? You think that gasoline just spontaneously goes into the cars? How do you think those gas stations have lighting at night or power modern cash registers and credit card machines and refrigerators.
The gas station gets its gas delivered by a tanker truck. You can have a gas station in areas with very little infrastructure. You can't deliver the electricity for the DC fast charger by truck.
Drawing 50kw to run lights and gas pumps is very different than drawing 500kw+ to run a bank of DC fast chargers. If you are in a remote area with marginal infrastructure, the line running to the proposed fast charger site might not be rated for that power. Or maybe the substation upstream of you can't absorb an extra MW of draw.
I'm an EV proponent. An EV is my primary vehicle, but waving away the real issues and downsides that come with owning one doesn't do anyone any favors. I regularly drive to an area in rural Maine that is a CCS desert. My destination is 40 miles from the nearest CCS charger, and 90 miles to one that is actually on my way home. This means in the winter, when my range drops by 20%, I need to either top myself off to near 100% before proceeding to my destination, so I have enough to get back to the charger on my way home, which takes a long time, or charge to 80% and resign myself to driving the 40 miles in the wrong direction to reach the closer fast charger on my return trip.
We will get there. Someday fast chargers will be as convenient and ubiquitous as gas stations, but we are not there yet. And don't get me started on how poorly some of these chargers are maintained or the idiocy of having to use a vendor-specific app for payment. Fortunately, 90% of my charging happens at home.