system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] What would the Ministry if Magic do if another power system emerged?

What would the ministry  do if certain people started to use Stands, hamon, Alchemy, Nen; or any other power syste.. Would they classify those people as wizards and introduce them to the magical world? Or would they leave them alone?
gpt
* Alchemy is a form of magic in the series, but not widely practiced; it's an elective at Hogwarts, but it may be cancelled if there aren't enough applicants. Yet, the one from FMA is a science that Muggles can use so they may try and tightly control it.
* Hamon isn't an actual form of magic, more a controlled form of meditation/skill. But given how dangerous vampires are in Jojo's Bizarre Adventure, the Ministry of Magic may not try and suppress Hamon among Muggles since they're descendants of the Hamon Tribe but may try and protect them instead.
* Stands are a bit difficult since only a Stand user can see Stands... in theory. They could be considered a form of Spirit meaning Wizards can see them, so Wizards can identify them... but since they're awakened by an artifact that could be magical, they may share an interest. They may also try and suppress Stand powers due to Pureblood supremacy theories or blatant racism as well as how dangerous Stands can be - most villainous Stand-users became assassins, remember?