Not sure how that would work if your job involves traveling, or you live in a rural area (in countries like Australia, we're not dense). Also, we have plenty of real estate, so Solar is actually very doable.

That being said, here in Melbourne, there has been a lot of emphasis on improving transport recently (they're getting rid of most of the railway crossings, building some new rail links, approving scooters for public use, new bike lanes and such). Governments are working on reducing reliance on Automobiles already in a lot of countries