The size, weight or mass of a vehicle should not & does not matter. Cyclist on roadways are to operate in a lawful manner. Why should cyclist not have to follow the laws pertaining to alcohol/drug usage just because were on a bicycle? Imagine the parent with a child who has to swerve to avoid hitting a drunken cyclist only to crash head on into incoming traffic & that is just 1 example. What then, it was "only" a bicycle?

We can't have it both ways, asking for rights & respect on the roads only to feel we don't need to adhere to alcohol/drug laws simply because we're on "bicycles" is counter productive to the progress of cyclist in society.