"You can pick your friends but you can't pick your friends nose," is a common saying in most English speaking countries and nose picking is a common habit many people have throughout the world. Most people would try not to pick their nose in public and may be embarrassed and mocked. From young ages people learn not to pick their noses and may get teased if they do and for good reason. It's disgusting. Picking your nose in public is considered deviant. It's such an odd and gross thing to do. I've even seen videos of people doing this made fun of on "Tosh.O" and other television programs.
Since nose picking and boogie eating is healthier could this deviant act become a norm? I doubt but i think its pretty interesting.