35 mph is perfectly adequate for all regular, everyday needs. Exceptions would be made for emergency vehicles.
I am 65 years old - but have never bothered to obtain a driver's license.
Instead, I use public transportation systems (municipal buses, light rail, etc.), bicycles, or my own two feet. I have always chosen workplaces near where I live (or, conversely, I would relocate to be near my job). There's a bakery 3 minutes away by foot, a butcher shop, barbershop, etc. - because I wisely chose a place of residence with access to such services.
Hardly anyone needs a car. And the tiny minority who do could certainly tolerate being restricted to vehicles mechanically incapable of exceeding a max. speed of 35 mph.
Regards,
I’ve used public transportation when it existed where I lived, and was do-able for work commuting. I wish it existed everywhere, but it doesn’t; it can’t.
I hate driving and I hate long road trips. Sadly, that’s life. If self-driving cars reached a point where they were safe, I’d be on board (no pun) with that option.
At some point after age 65, walking and bicycling won’t be possible.
During my tour in Germany from 77 to 81, I probably drove nearly 50K miles at speeds in excess of 100 MPH on the Autobahn. It was awesome! I felt safer doing that than driving nowadays in Texas (and elsewhere) as the traffic laws were enforced in Germany.
Personally, I don't think you're very wise at all. Like I said, to each his own.
Should the government only allow us to own what we need?