California car registrations

Apparently, California is not interested in making sure people have current registrations on their cars. Each morning, as Gary walks/runs through the parking lot where we live, he sees a large number of cars that are not current in their registration.  He has seen many that have 2013 stickers still on them! Well, the other day, I found one even older....2009!  And, it doesn't just sit in the parking lot.  It goes out every day on the road.  We guess California just doesn't care about getting revenue from this source.....crazy!!!