I think the universal themes of "American Pie" are what make it attractive to everybody. How to people relate to these characters? It's because these five male characters in this movie wouldn't ordinarily be in the same friend group and they each have their own part to play in the whole thing. There's a character for everybody in this movie that they can relate to... that they either were or knew someone that was. To cover the range like that is pretty unique to our franchise.
