Exactly. The two are barely comparable from a content perspective:

On G+ I have a groomed list of about a hundred people scattered through various circles. I try and post something interesting or original every day: a link or one of my own photos. And what I typically see posted in return is great original content with a smattering of the most interesting links from people who's opinions and ideas I actually value.

On Facebook I'm peppered with the typical (and already thoroughly discussed) inane saccharine mommy-updates, zinga updates, and other random drivel on an account I only keep active because of there are a small handful of people so glued to the platform they no longer reply to regular email, but whom I need to be in contact every so often for various family or volunteering reasons.

The thing is that new users need some kind of G+ buddy system these days, a well-connected user to say: join, and circle these fifty people.

Ultimately, I don't think will come down to much actual enforcement. Having myself been technically "at fault" in a minor collision a few years back a law like this would have meant actual justice for me against the douche who really caused the mishap. Instead of the cops saying "well, it's not illegal to be talking on a phone" and leaving it to me to try to prove undue care and attention on his part -- which went nowhere, btw -- it would have been a matter of proving he was on a phone; wham, he's breaking the law and bam, it's his fault now. Which he was... and he should have been. In my opinion, this is about assigning legal fault where fault is due -- and if people are a little more careful on the roads as a result, bonus. In my case, a minor insurance blemish, but in larger collisions with real injuries and lawsuits, invaluable.