Hey Amazing bro,

You do not have to agree to whatever I say; this is my point a view and a lot of people geting married with guys in the US go through the same situation.

Why do these girls not look on the positive sides; how their lives are easier than others because their husbands are settled already; and how about sharing her opinions with her husband or her parents. In our society, even our parents had a lot of age difference but they managed to raise a decent family.

As other people have mentioned, it is all about compromise. Is is a shame that your educated friend shares her emotions with people who are not aware of the real situation; I bet the husband does not even know what is going on on her mind. 

Why doesn't she make friends with other Nepalese girls just like her and see how they are coping with their own married life.

( as you said .."and 22-25 guys ar not all LAFANGA in Nepal... " you are partially right. with enemployment rate >40% it is  also likely that guys in this age group are lafangas - "

Well if she doesn't like this guy, why doesn't she just divorce him and she can get 50% of his assets; and this guy will have lots of girls wanting to marry him, here in the US or back home.

Your friend is a coward; either leave the guy or compromise that is the bottom line.