It’s already past the point where only rich people have them. It’s currently one of those things where it’s actually more expensive to be poor.
I bought an EV because it’s cheaper over a few years than getting the cheapest gasoline beater car. It’s a bigger cost up front, but the total cost is smaller over few years.
If anything, only rich people will be able to afford keeping the gasoline cars. Similarly to todays vintage lead fueled classics.