See e.g. https://www.youtube.com/watch?v=ARjrpb_FOcs (skip to about 5:00 or 8:00 so get a sense of some of the redesign).
Wasn't always like that either. In the 90s it was cars-first just like the OP likes nowadays.
It's definitely true that having only bicycle infrastructure doesn't really work for families though. It's a different story if you've got a cargo bike and public transport... But it's understandable that that's not even entering his mind considering the culture of the USA.
It's only cheap because they are heavily subsidized. And then we go back to a discussion about policy. If you remove all the subsidies or make car-owners pay for the externalities, things would quickly turn in favor for higher density, public transit, and AFAIK no game has put this into their game economics.
The ongoing cost is minimal and my life would be significantly worse without the ability to drive places.
Add the cost of the gas needed to power all these cars, plus the cost of the land allocated solely for parking, plus the costs of the roads, plus the costs in healthcare associated with air pollution, plus the environmental cost of all the concrete and steel need to build and maintain the roads, etc.
It's not just "car ownership", it's "car-centric infrastructure" that is expensive.
But you'd need less of them.
> The majority of the wear on them isn't from passenger vehicles.
Correct, but irrelevant. The I-93 around Boston does not have 4-6 lanes each way because they have lots of trucks during rush hour.
The size of a traditional road is about 6 metres wide or less (that's measured from the front wall of the building on one side, to the front wall of the building on the opposite side). In comparison, the same wall-to-wall measure of a car-centric suburban street comes out to, IIRC, 20-30 metres. That's 3-5x the cost in just land alone, let alone maintenance.
And yes, we will need some roads - about 20% or so, as arterial roads. But right now we're closer to 100%, and most of the throughput of arterial roads is tied up in one-occupant passenger vehicles rather than actually necessary cargo/tradie vehicles.
See https://bicycledutch.wordpress.com/2013/12/12/amsterdam-chil...
It looks to me like it was 100% a "think of the children" moment that often gets ridiculed. I can see the same inflection point in my country around the same time, when street and road design shifted to car orientated and car priority - Amsterdam being one of the notable exceptions but with a well documented fight.