You might actually see a huge lift in private aviation as I don’t have to show government ID or otherwise check in with the government for those flights (provided they take off and land in the US). You can’t even necessarily track the tail numbers of the airplane if it operates from non-towered airports away from our largest 150 or so airports and under 10K feet (so piston airplanes).

You would also displace a lot of travel to private autos, with a decrease in safety/increase in fatalities and typically an increase in fuel consumption when comparing a single occupancy car to a fairly full flight. Plus, if I’m going to be driving a car 500 miles pretty regularly, I’m going to splurge for a nice, big, comfy car and it’s not going to be an electric. Since I currently fly rather than drive on road trips, today I can drive a small electric as my daily driver.