I was in Tokyo, Japan to complete my work visa for South Korea. I wasn't there longer than a day. On my way to my terminal I saw this very, very intriguing banner. The idea was amazing and so foreign since the US is now the #1 Nanny state right behind the likes of Venezuela and maybe Cuba.
Vitamin C sprayed at you from your car? I'm not sure the idea would catch on. But would an American entrepeneur even try? I doubt it. He'd be afraid the heavy foot of the regulators would come crashing down on his neck.