That is true, narrow outside lanes are not good for the door issue you mentioned, which is why I prefer to ride in the road proper. My point was that the strategy to create separation from traffic that employs hashes rather than barriers of some kind is preferable because the barriers themselves become hazards. Wider lanes would be better, but even with wider inside lanes (which dont exist imn my area), parked cars are as tall as bike riders so you can't be seen or see over the tap. And you are pinned between barriers on both sides -- parked cars on one, curb on the other -- so options to avoid trouble are more limited.