The marriage can't be compared to being sold to brothels in India. Here's why:

1) In case of girls being sold into brothels, the family of these girls are illiterate and can't properly think for themselves. In the case of marriage, this is not the case.

2) In the case of brothels girls, the perpetrators are intentionally trying to deceive. In marriage, it is not so. The guy decided to start a family with her.

3) In marriage, if for some reason you want out, you can always get a divorce. Girls sold to brothels usually need to be rescued.