Car ownership is pretty expensive. But holistically speaking it's not more expensive than the Deutschland Ticket, because it gives you access to cheaper housing options that you wouldn't be able to live in if you depended solely on public transport.
Can confirm for the US too. I live in a rural county with zero public transport, but when I tell city friends what the lot cost and the property tax on it, they have to hold back tears.
There's a way to combine those, and some countries have it done well (I believe this includes Germany) - you have a rail network that is good enough that you have small stops on feeder lines in rural areas; if you want to be rural you can be a mile from a train that gets you to a moderate-sized city where you can get the fast train.
