car traffic on the streets has increased about 4 times since I was a kid, and I see everyday how my kids are harmed by this. My parents didn't even think about me crossing the street, I just did it starting around age 6. Now we have to teach our kids a lot to cross even the street we live on. Things can be better https://theconversation.com/how-cities-of-the-future-could-see-cars-parked-for-good-21138