> How many people drive their car for leisure?

Probably much fewer than in generations past. There is frequent reportage that in the USA, the car is no longer so regarded as a symbol of personal freedom. And in many countries, petrol is expensive and heavily taxed with some effect on discouraging usage.

Definitely not forbidden, just heavily taxed or conducted in a way that doesn’t [disproportionately] harm the environment. If your gaming rig runs off renewables and you ride an electric motorcycle, be my guest.

I mean, I don’t want to be a dick, I don’t care if someone drives a few kilometers more on their way from work because it’s nicer there, after all, there ARE private yachts that burn the same amount of fuel every twenty meters, and I don’t think that a few rally stages or a few laps around Spa is what finally kills the planet, but there’s something about setting 400 tons of wood on fire for “big flamey thing nice” that pisses me off way more than people riding motorcycles. Way more of that middle finger energy.

I agree that the price of fuel should be increased to the point where it covers externalities. This could be treated the same. But you specifically asked for “not legal”.

Please don't bring motorcycles into this. The environmental impact is negligible compared to cars. The problem is not that if their pollution. If there's an issue, rather bring up loud Harleys and so on that contribute to noise in city streets and such.