we all know that the entire world loves to follow america for fashion, music, science and the list goes on.
if once america says 'its ok', everybody says 'its ok'. for example. as a doctor in india, i know that we use medical drugs only after american food and drug administration [FDA] has approved them.
once i met an american lady in my hospital. it was really interesting to listen from her and i quote "jesus, young indian crowd is even more americanized than americans!"
after living in china, i can say that chinese people also love to follow american stuff.
so why do you think this is happening?

