The encroachment of automatics and electric cars is another concern. I wouldn't have a clue how to drive either of those, and I bet they aren't standardised.
Never driven an EV but used to have the same feeling about autos. Then I had to drive a garage loan car so had no choice. But I got used to it in about 5 minutes. Only issue is feeling like you want to push your clutch foot through the bulkhead when stopping at lights!

Now since having a BMW with the 8 speed box I'm a total convert to autos. So much better.
Yes how you select D, N, R, P etc can differ between makes but you pick it up in as little time as an unfamiliar manual car (where's reverse, top left, bottom right? Do I need to push the stick down, lift it up or lift a catch to select it?)
Seriously though, if a car doesn't have accelerator brake and clutch I wouldn't know how to drive it. I wouldn't know how to do manoeuvreing and parking. How do I leave it in gear on a hill. The list goes on and I don't think I'd be safe learning as I go along.
You just leave it in Drive with your foot on the brake. Or if you're going to be stationary for a bit longer, put it in Park and put handbrake on. Manoeuvring: in D to go forward, R to reverse. Couldn't be simpler.
Automatic EVs are way better than automatic ICE cars. You don't get lurching gear changes or periods when you wonder why the car seems to be driving in a higher gear than it should be.
I don't get that with the 8 speed ZF box in the 2 BMWs I've had.