I work in construction. Do you expect me to move next to a new project every 3 years? What about people who work on multiple projects a day?
You can’t expect people to change their housing to be right next to their work or change their work to be right next to their housing. You’re silly.
Designing cities for transit is designing them properly. Designing them for only walking is a fairy tale thought up by a 12 year old with no real world experience. Look how well transit works in European and Asian cities. Vancouver is even halfway decent (tons of room to improve still).