Why is it that bicyclists don't like to cycle in the bicycle lane?

I encounter this all the time.
I’ll be driving on a road and meet a bicyclist that’s ignoring the bicycle lane in favor of riding just to the left of the solid white line.
My taxes have been spent so they can have a dedicated lane for riding their bicycle. Why can’t the use it?

I think there should be a law that if a bicycle lane is available, a cyclist has to use it unless they can give a good reason (like blockage) that they can’t.