Judging by the fact that most of Facebook is based on PHP, it sounds to me like it's pretty robust... It's also object oriented.
The only drawback that I would find as a code-geek is weak typing
Which Facebook is addressing with their language Hack, which is heavily based on the PHP language. As a bonus, you also get a language that's built from the ground-up to be fully functional with their HHVM technology. It's an exciting time for PHP.
If parents don't want to vaccinate their kids, fine; they can put them in private schools or homeschool them themselves.
Android is free and open
So where's the Raspberry Pi distribution (that actually works) if it's so free and open?
Personally, I believe that the benefits you list can be achieved with relaxation
Are you fucking kidding me? Tell that to my friend who's currently undergoing chemotherapy to combat stage IV cancer, which is likely to kill her within the year. It's a little hard to just relax without outside help knowing that she's about to leave a family behind at the age of 30...