That there is absolutely nothing wrong with boys and girls mixing together socially from an early age (under supervision). That many professional shadchanim probably have no business making shidduchim (couples should meet on their own, in college, at Shul, in fun, frum-sponsored events, at the pizza place, etc.)and that NASI is not a well-thought out idea for various reasons. That boys should not take off after marriage to sit and learn all day, but are obligated to devote at least half that day (and preferably more, if more is needed to pay the bills)to earning a parnassah from day one, so that their wives can be free to (gasp!) raise their children as Hashem intended, when they come along. Those boys can do what many men did in my younger years – learn during their breaks, early in the morning before davening, and for a certain amount of time each evening, that does not interfere with their spending time with their wives and children, which is also important for a Jewish home.
Have I said too much???? Oops! Well you DID ask!