Why the rush? (as asked by Havemoreseichel) Marriage is a vehicle to shleimus, going from an I to a flexible, giving we. Without marriage and young, you in most cases lack this shleimus, and it is a lifetime work. It is best to get a head start. Given that a youngster is not a shaleim, guidance is critical, but often a wise third party is the best guide in lieu of or in contrast with parental guidance. There are also biological issues that chazal were well aware of in endorsing early marriage. Being in the Western, modern kugel, we have all manner of complexities and hangups that are hindering the Torah ideal.
