Seeing as the average scout is between 12 and 16 before he gets his Eagle, I feel it is inappropriate to teach them anything about parenthood. It is the job of the parents when they see fit.
I think scouting has changed for the worse when it comes to the new merit badges and such. Scouting is and will always be about building self-confidence, respect for authority, citizenship, and mostly camping. That is why as a scout leader I do not push nor encourage the “new” badges and we camp at least once if not more a month.
You may not realize it but you are already teaching a father role to these boys. This starts at birth. A child sees how a man treats his wife and family. Mothers do the same with daughters. Kids that have a negative role model can get the chance to see a better way from mentors. People always think of parenthood as sex. That is not what I’m talking about.