I don't think his argument is that we should restrict anything, more so that circumvention requires learning, and is a great motivator. I definitely can +1 this from my own youth. Learning how to bypass well-intentioned internet protections on school computers so I could play flash games sparked an interest in technology that I may never have discovered otherwise.

It's a weird internal conflict to know that my core is shaped by an experience I otherwise believe shouldn't exist in a reasonable society.