Tiburon's an interesting and super wealthy place. I think they can afford to do this just to make sure things stay safe. I'm not saying it's right or not, but there's a standard way in and a standard way out. The weekend gets a tourist/drinking crowd that comes by car and ferry and the road traffic leaving can be brutal. I can see why they would want to do this. You've got to spend time drinking at Sam's to really understand.
And at the risk of being a douche, "and it’s relative difficulty". Remember that it's = it is. the quote from the article reads as "and it is relative difficulty".
One problem with people who have a high IQ is knowing when to turn it off and fit in the people around them. It's a skill that smart people need to be aware of and practice, for their own best benefit, otherwise you run the risk of being socially inept.
The only time the grass is green up there is in the January/February months after the rains. Come August, all that grass is yellow, dead, brittle and ready to burn at over 100 degrees at midday. And if you're allergic to cut grass, there is so much grass dust in the air that it's best if you go somewhere else for vacation.
It is a nail in your nasal cavities and you put it there on purpose. No no no!