Cool. Because if you were suggesting that in the real world then, at least in America, you're suggesting a complete overhaul of almost all transportation infrastructure and saying that no average person will have to spend an extra dollar to pay for it somehow. Is Mexico paying for it or something?
[1] https://usafacts.org/state-of-the-union/transportation-infra... -- note that rail expenditure isn't all public transport, the majority of US rail infrastructure is freight transport.
Even in many parts of America (which are not that different from many parts of, say, France, which I'm very familiar with, thankyouverymuch), private car ownership is not an absolute requirement.
Can people there get around with Public Transport<tm>? Nope. Do they require their Own Private Sardine Can At All Times<tm>? No, not necessarily either.
And I'm firmly in the "No Sardine Cans Ever!" camp, and I have solutions. If you're somewhere else, that's fine with me, but you're not so convincing as you might feel...
I've been to France as well, outside of major cities. Perhaps not as well traveled as you, but I remember seeing plenty of private cars in driveways and on roads as we passed by various dwellings. I doubt they'd take kindly to your suggestion either. Weren't there riots over the price of gasoline not that long ago?
Whatever, be a flat-earther of transportation policy if you wish. You clearly aren't serious.