Why do the western culture feel touch and expression of affection is wrong?

[trendlover]

http://www.msn.com/en-us/sports/nba...g-his-arm-around-kate/ar-BBgynAj?ocid=U146DHP

 

[achilles28]

It's etiquette. Monarchs are regarded as being set apart, above the commoners.

 

[trendlover]

It's etiquette. Monarchs are regarded as being set apart, above the commoners.

 

[trendlover]

Etiquette.
http://dictionary.reference.com/browse/Etiquette
With so much murder, anger, and race problems in the USA why is affection and touch bad media? Every day I hug my brother, my grandfather, my boyfriend and my girlfriends if I see them for that day. To show love and warm.

 

[achilles28]

The same reason why Americans aren't allowed to hug and man handle the President...?