Wow! You're working on VERY interesting matter!! I can spend hours with you discussing abotu it
Well, since you're learning Japanese at university, I assume you can understand Japanese catoons on TV. My suggestion is to watch "sazae-san", which is a real looooong time hit as catoon, any Japanese know, and what's more, this describes/shows the "typical traditional Japanese family" in a good way. I think it's interesting to use this catoon as reference, as oppose to "recent family/household". In this catoon, the one who has power over the entire family IS the father/grand fater.
Another insteresting point that you can focus on could be the negative fact/reality of "making fun of fathers", which was kind of taboo in post-war Japan.
Knowing both above, look at the strange TV commercial of Softbank mobile. The father is a dog! HOWEVER, attention, if you can watch carefully the comercials, this dog father DOES have both old and recent fatherhood: strong inflence/power over his family (listen to how "brother" talks to his dog father) and weak to his wife (dog father's wife seems to be a calm sophysticated very Japanese mother/wife, but she can easily shut up this dog father's mouth!).
Recent families and young mothers have a lot of insane problems...so, probably it's better to focus on certain points. Good luck!