An acquaintance of mine (whom I've always found quite reliable) reports that when she sought out an egg donor, one candidate donor — a woman who was past the age of majority, and in fact in graduate school — was disqualified by the agency involved because she was ... a virgin. The theory, I take it, is that somehow the lack of sexual experience made it harder to maturely make the egg donation decision, though that sounds pretty odd to me. (The acquaintance stressed that the disqualification was the agency's choice, not her own.)
Perhaps there was something lost in the translation, but, as I said, my source was quite credible. Nothing illegal here, just interesting.