Where I live it is only mandatory to use the bike line if there is a sign mandating it (blue circle with a bike drawn in it), but otherwise bikes are free to ta

Where I live it is only mandatory to use the bike line if there is a sign mandating it (blue circle with a bike drawn in it), but otherwise bikes are free to take the road if they prefer (because many of bike lines are in bad shape, too narrow, or shared with the pedestrian) And the road designer know that because the road marking near traffic lights still have spacial mark for the cyclist, despite the bike line next to it.