Fortunately you can easily change it. If you go to https://appleid.apple.com and login using their account details, in the Password and Security section, you can change the year of their birth. 1/1/2001 works fine, I think the key is that they need to be over 13 to change from Adult to Child account.
Benjy Fenwick (d. 1981) was a wizard and member of the original Order of the Phoenix. He fought in the First Wizarding War and was murdered and mutilated by Death Eaters before the war's end.
Filius Flitwick was a kind, intelligent wizard who cared for his students and tried his best to help them learn the best they could. He values learning and this is a noticeable Ravenclaw trait. In short, Ravenclaws are intelligent, though not necessarily studious. They can be absent minded, creative, wise and can be considered strange, however, they love to learn and to seek knowledge if they are interested in the subject.