The choices really are two: subway (or any dedicated rail thing) or car.
The choices really are two: subway (or any dedicated rail thing) or car.
You’re right that they aren’t much use if they get stuck in the same traffic as everyone else.
Every bus lane you build is ~800 cars you don't have to deal with in traffic, assuming an approximately two hour rush hour
While if they run in dedicated lanes there is a counterbalance: the more people drive the worse traffic is, making the bus a comparatively better option, making people drive less... :)
These countries have been doing this for a long time.
I would never dare to do so where I lived before: I'd almost certainly be a blob of blood and guts splattered on the road by now.
It's infuriating how little thought is given to anything that is not a road for The Car. Billions of taxpayer money spent on massive road construction and repair but god forbid we build bike paths for 1/20th of the cost and 1/100th of the upkeep.
If biking works for you, where you are, great. But it's at best a pretty small part of the solution.
In the Netherlands kids bike everywhere with their friends, because it's safe and comfortable to do so. If they want to play sports they grab their bikes and go, they don't have to sit in traffic for 45mins in the back of their parents SUV. The Netherlands also has some of the happiest children on earth according to studies. Go figure :)
Ironically that makes cycling a much better choice for people who aren't fit. Finally something where being lazy gives you an advantage.
Raising the heart rate much faster is also part of a better self-regulation of a fit person.