Bike lanes only work if they are physically separate from the road. Otherwise, they are covered with debris swept off the main road surface, populated by double-parked delivery trucks and cars,or a random hazard of opening car doors and cyclists who are too stupid to obey the rules of the road (e.g., riding the wrong direction).
That is not my experience at all (double parked trucks + cars + opening of car doors). If you have more cyclists, then traffic will get used to it. Until that happens it might seem worse, but in my experience bike lanes on the road are fine.
Of course, separate is better. Just not mandatory.
