When I mentioned this recently to a chasid, he told me the following:
His teenage daughter came home late one day from school and she said that her whole class had gotten into a heated discussion. The father asked well what was so interesting that you were discussing? She replied, "One of the girls claimed that when a man and woman get married they are allowed to touch each other. Most of the class thought that was ridiculous since it violates the rule that men can't touch women."
A teenage boy found out that not only was there a mikveh for men but that there existed a mikveh for women. He asked his parents why would women need to have a mikveh. His father explained to him with a straight face - "It is a Sefardi chumra."
Many years ago, Rav Yaakov Kaminetsky mentioned this problem to my brother and said that boys should start getting some form of education by the time they are 16. I mentioned this to the Novominsker Rebbe 20 years ago. He replied that 16 is too late, "there are boys of 8 that know more than me." This is also the subject of a pamphet written about 25 years ago by the Skulener Rebbe.