Why not? There are people (including quite a few commenters here I believe) that believe in significantly altering their reality, creating their own realities, creating their own dimensions, shifting to their own and/or pre-existing dimensions, shifting to higher or lower realities, shifting to realities of your choice, etc etc.
As such, why is it so out there for someone to want to “shit to Hogwarts” if that is their idea of a dream universe?
Of course, one might reasonably assert that the process is more involved than listening to a subliminal on repeat, but that might be debatable and depend on the how gifted one is.