Not magic that is useless to society.
Magic that is not valued by society.

Frieren’s quest for weird magic is so real to me.
Like I don’t want the magic that blows up the moon.
I want that spell that removes tough stains from fabrics.
Hmm… In school they would be taught some magic that is not really useful but that “has pedagogical value.” At work they’d be forced to use the magic that the market demands, but it’d be unimaginative and micromanaged. But they would have some hobby magics that are very amusing but slightly embarassing…
At work they’d be forced to use the magic that the market demands
Yeah, in a world where fire magic existed, there would be fire magicians whose day job was being a human-powered blast furnace, blasting something with fire over and over. They wouldn’t be out having adventures, and the use of their magic would probably be heavily regulated.
Until someone invents a magi-tech furnace and those people have to turn to others means to make money





