I don't think we can necessarily assume that an arranged marriage is positive-to-neutral for both members of the couple, however. Parents may act in their own best interests or those of other members of the family, even if they tell themselves they are putting their child's interests first. Practices like dowries, and issues of gender inequality and the socio-economic status of families and clans, further cloud the issue.

Which is not to say that leaving it up to the kids themselves is always successful...