I think those who marry, with the PRIMARY goal of having a regular sex partner, might windup in an unhappy marriage?
I have a friend who married because she and her boyfriend at the time didn't want to have sex before marriage. (They both had been married before). Seems like they had sex on the brain. They divorced less than 2 years later. So sad!
I know of a couple cases like this too. In fact, I really don't know of any success stories of chaste dating. Not that I don't think its possible just that I think couples need to be be honest with themselves and their partner for what they need to build a healthy relationship.