I don't think that's what makes carless existence unrealistic for most people - the fact is our cities have evolved on the assumption we all have cars, hence we

I don't think that's what makes carless existence unrealistic for most people - the fact is our cities have evolved on the assumption we all have cars, hence we think nothing of making decisions that force us to travel significant distances for shopping, work, dining out, visiting family/friends. That's not going to change by removing laws requiring parking minimums (though I certainly agree doing so is low hanging fruit).