1. Cars have existed in approximately the same form factor for the entire lives of the vast majority of people alive today. Convenient, portable machines for typing are a relatively new product. You can easily see the age gap, ask a teenager to type something and then ask a retired person to type something. One of those two people will struggle. I can't remember the last time I wrote something other than a to-do list, but my retired parents regularly send me photos of hand-written notes.

2. Driving and walking do not cover the same use cases. You cannot drive through the grocery store and most people cannot walk 100+ miles away.