Question

reasons for adopting democracy in country like libya, egypt ,bhutan ,nepal

Answer 1

because the US tries too hard, as did the British before them, in their own way - Communism failed for the same reason - it is a disease to want everyone to be the same as you, and it may yet be the death of modern Democracy

Answer 2

in libya people were very critical of the ruler .
in nepal due to peoples force and people were critical of the Rana autocracy.
in bhutan king agreed to give up his powers
in egypt militiary dictators were forced to leave