Eh, I live in a relatively large European city and only around 5% of people that I know are within a 15 minute walk from their work or university. I was actuall

Eh, I live in a relatively large European city and only around 5% of people that I know are within a 15 minute walk from their work or university. I was actually closer when I lived in SF, which seemed denser, but that's an exception among US cities.