So this post is not helpful but...
I married a mechanic...problem solved! ;)
In all seriousness though, like John just mentioned, the variables are numerous and specific to each situation as to whether or not it's a realistic possibility.
it comes down to how it effects your quality of life, which is a very personal metric.
People of the past for instance were not somehow hardier or better because they they could live a good life in a rural area without a vehicle; if the social structure around you lends itself to a vehicle-less lifestyle then it makes it so much more feasible to do so. The same applies today.
(I've had a couple jobs, one living rurally and one in the city
where I biked about 15km (9 miles) to work, but it was something I was able to do at the time and not something I did during the winter.)