You write like this was made as a conscious decision, based on city planning somehow. There is significant research that shows people are much happier in walkab

You write like this was made as a conscious decision, based on city planning somehow. There is significant research that shows people are much happier in walkable communities. Moreover, the car centric solution is not scalable as cities grow. Almost 50% of the world population already live in cities worldwide. That number is estimated to grow to 75% over the next 30 years. It is also interesting that you mention kids. Amongst the poorer and the elderly children are kids the main group to really suffer from the car centric design of cities. Essentially, you completely restrict their mobility, preventing them to move around on their own accord and instead making them relent on parents to drive them somewhere. I would not be surprised if this significantly contributes to the problems of children becoming less and less resilient and independent.