My mom and I haven't always lived within walking distance at work, which for my mom would've been like 2 miles, for me like 3 miles.  Neither of us still ever drove a car for work.

And anyone who has gotten to know me well can tell you I am relatively well traveled here on O'ahu, whether its for work or leisure, done over a dozen hiking trails, and yes walked every neighborhood (as defined by the city Neighborhood Board system) in O'ahu, going door to door (though never quite reaching every door).

It was a hoof, and it still is, and its hard work but doable, either for a less educated working immigrant like my mom, or a guy who was born and raised here, who eventually got a college education.