<<<And why Sir, are these warning signs written in English, please?
Dzongkha, I believe, is the "official" language of Bhutan and the preferred
language of government. It dominates in Western Bhutan and has the most
speakers though there are about 2 dozen languages overall.
English is widely used in education and this was confirmed by our observation
that every class in high school we attended as guests was in English. The
national newspaper is published in Dzongkha, English, and Nepali.
I suspect an English sign for foreign visitors is also very high yield.
Themed Olympus Photo Exhibition: http://www.tope.nl/