My UO is that I LIKED the Epilogue of Harry Potter, unlike the vast majority of the adult world. I went into the series looking at the Wizarding World as a Victorian society, so them meeting young and sticking with that person and getting married didn't phase me. In fact, the fact that their oldest kid is 13 surprised the crap out of me, since I sort of expected that they would get married and start having kids young. Harry and Ginny were about 22 and 21 when James is conceived, and Ron and Hermione waited another 2 years after that for their first kid. It all tracks for me, unlike everyone else I know.