FathimaH,
Unfortunately the success cases of the women you know who were married before 18 do not represent the majority.
No one here is pointing fingers at any country.
The discussion is around women in less favored life conditions.
Marrying below 18 is cutting the individual's development short. No one is fully developed at that age!
I don’t think that anyone with an education would be happy to see their child marrying at that age!