On why people make me need beta blockers

I spent a lot of time in the car this weekend.  A lot of time.  And every time I find myself in the car for a long time, I find myself wondering why driving is so confusing for people.  I suppose there are a lot of rules of the road.  Speed limits, yellow lines, white lines, broken white lines, broken yellow lines, stop signs, traffic lights, yield signs... I mean, I guess that could be overwhelming.  But really, it's not that confusing.  For instance, which lane is for passing?

Or, where do you park to get gas versus take a poop?

See?  Not that hard.