Must be an underdeveloped, poor and Third-World-Country.

Nope.

It's happening in the "Land of the Free", the United States of America .... and it's happening right now, like it did the past one hundred-or-so years before.

Would you imagine that in this country - which is eager to spread its "values" (sometimes forcibly) all over the world - 25 out of their 50 States have no limit on how old a girl MUST be to get married?

What a coincidence: This happens mostly in the States that are the ones where fundamentalist, "devout christians" dwell.

Hallelujah!