Forced marriage is bad. That's for sure.

Arranged marriage is ok, as long as both the man and woman are happy with the arrangement, and in my opinion they should have had time to get to know each other and fall in love. Does that happen?

And of course there's the issue of marriage between family members (which sometimes happens in arranged marriages, correct?) and the problems this can cause from a genetic point of view. That's not good in my opinion.