Car-centric urban planning is hell with kids. You have to load them up into the car for any small trip. You can't walk or bike anywhere because cars make it so dangerous.
My only regret about living in the US is this car hellscape that is so hard to avoid. It's mandated by law, not chosen by the market.
Everything will be connected and commutable, especially the suburbs. Automated, on-demand delivery will become a part of everyday life.
Instead of busses and semis, we'll have small pods for smaller cargo and small parties. Highways will turn into logistics corridors, and we'll route people and goods seamlessly.
All the clamor for trains and rail will go away when our roads become an even superior version of that. Private commuting to any destination, large homes with lots of land, same day delivery of everything.