Honestly for me the most unrealistic part about the Harry potter universe is the fact that so many of the adult characters have alliterative names
I don’t think it’s very unrealistic, I mean it’s unrealistic for muggles but it seems to me that that alliterative names are the fashion in the wizarding world. I don’t think there are even that many though? Only one I can think of off the top of my head is Luna Lovegood.
All I could think of was Severus Snape. So I went to check wikipedia.
Wiki: Bathilda Bagshot, Cho Chang, Colin Creevey, Dilys Derwent, Dedalus Diggle, Dudley Dursley, Filius Flitwick, Gregory Goyle, Gellert Grindelwald, Godric Gryffindor, Helga Hufflepuff, Minerva McGonagall, Mad-Eye Moody, Pansy Parkinson, Padma & Parvati Patil, Peter Pettigrew, Poppy Pomfrey, Quirinus Quirrel, Rowena Ravenclaw, Stan Shunpike, Salazar Slytherin, Ted Tonks.
That’s nothing! You should see the Marvel Universe!