Why can't we have both? I hope to see commoditized commuting in my lifetime. My commute from work won't be on public transport (at least, not in the traditional

Why can't we have both? I hope to see commoditized commuting in my lifetime. My commute from work won't be on public transport (at least, not in the traditional sense), but rather in a car that is cheap to buy, cheap to use, and fully autonomous. This leaves me to spend money that would otherwise be spent on my commuter/family/fun all-in-one car on a car that does the fun bits of driving quite a lot better.