You can learn a lot from anime. Personally, I've learned a lot of Japanese from them. Not that you baka would know any. Sugoi monogatari, onii-chan. But anime also teaches you about Japanese culture as well as the rich language.

For instance, the fact that nobody knows how to knock in Japan. “I know the door to the bathroom is closed, and I can hear the sound of running water, but I know there’s no way there could be naked girls in their soaping each other up.”

Well, I've been wrong before.  Alt: Best mistake ever!

Despite their cleanliness, Japanese people can catch a cold from just about anywhere.  Not sleeping under the blankets?  Catch a cold.  Going outside when it's cold?  Kaze o hikimasu.  And to think, all this time the common cold actually came from actually being cold, and not a virus.

And what happens when an actual virus or other potentially dangerous foe comes to destroy humanity?  Of course, throw a bunch of teenage high school students at it.  (Their parents are NEVER in town or even present anyways.)  Those who don't die will develop some sort of superpower, or find some mech that they mysteriously know how pilot perfectly (unless their name is Shinji).  The more hair they have or the louder they can scream also helps. 

A true hero.

We can't forget about important life lessons from hentai either.  A man's erection is very painful, and the only way to solve it is via blowjob.   It can't be helped.  Hips really do move on their own, eating someone's poop means that you love them, and all demons want to secretly impregnate every single human female, and somehow have the correct (but oversized) genitalia to do so.

Did I miss anything?