Most problems are best solved privately, not through government. There's a problem of discourtesy in the world, which is best handled through social norms, which are indispensable. But you wouldn't want the government to be mandating courtesy.
Cass SunsteinI talked to George Lucas once, not about Star Wars. Everyone wants to talk to him about Star Wars, and I didn't want to be one of those people. In person - at least on this occasion - he wasn't effervescent and giddy, as the Star Wars movies are. He's more focused.
Cass Sunstein