Not sure about how good or bad it is in the US, but in the Netherlands (a place that is known for good infrastructure) it’s definitely not perfect.
I never realised until we got a baby and I started walking with a stroler. Way too often the sidewalk is inaccessible because of cars or bicycles. Also lots of places without ramps or elevators.
If you ask people what they want it makes sense you’ll get a lot a sequels.
Like if you asked people what they wanted 200 years ago they would say faster horses, not a car.