To be fair, I actually don't know of many popular books/shows that have a school meant for magic with clearly defined Colleges, beyond Harry Potter with its Houses. Especially where they essentially match personality types to your College/House.
But it’s definitely a big Harry Potter goof, also
I don't think Harry Potter is the only
inspiration for Strixhaven, but its clearly a pretty big one. Mage Tower for example is pretty clearly inspired by Quidditch.
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