How do you think a significant chunk of people outside of US live? Commute in public transit within city limits, go camping in your car… The problem in NA, we planned public transit so bad that it is very inconvenient to do anything. The second it becomes a better choice than driving, it’ll be used even more.
Like it’s a no-brainer for me to ever drive while i’m within the city limits of Vancouver, but for hikes and camping, it’s the obvious choice. Same with metro areas of European cities. I won’t even bring Asian cities as example, because it’s cheating.
Chicken and egg problem in terms of investment and public perception though. Inability to build large scale infrastructure also makes it impossible.