The Primarch Keeps Breaking Things

Magic and magic-related items are heavily regulated, and only given out to government officials. It turns out that governments aren't a fan of people being able to enter their country without its knowledge. The already existing transportation industries weren't too keen on going bankrupt either.

There have also been several indecents in the past involving scrying and glamours. Further, you can kill people with magic. It's just not worth allowing the public to use it.

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seriously though knowledge and transportation magic is op, and would be super difficult for governments to deal with.