You're writing like someone who never has had to ride next to parked cars on the inside next to a sidewalk with no buffer zone. The section like that in Brookline on Boylston St is an absolute nightmare. Parked cars treat that area as if it is comfort parking for them. Constantly there are cars parked with their wheels in the bike lane and people swinging their doors open without looking. This includes people leaving their doors wide open as they muck about in their car. Not to mention pedestrians who use the bike lane as if it were an extension of the sidewalk. Traffic, parked cars, bike lane, and sidewalk with nothing but lines separating each of those areas is a recipe for getting doored or other injury.