Education in the arts is given to children in schools because without it, they'd just be engaged in routine memorization. Not every kid winds up being an artist, true. Not every kid winds up going into sciences/math either though. It gives people the option to explore what the hell they want to do with themselves, and how they want to develop themselves and their skills; which is what any good schooling out to be aimed towards.
While arts isn't about teaching creativity, it gives you a great place for kids in school to practice and develop their ability to be creative. They study other people's methods of HOW to be creative, and get graded on it too. Later on though, they get to pick who's style they follow, and move on from there.
For a kid to grow up and actually be a useful member of society, they need to learn their hard facts from sciences and maths. They also need to learn how to use their brains creatively, and not just barf up pre-memorized facts. Just look at historys greatest scientists, they usually specialized in arts, philosphy, subjects that encouraged thinking creatively.
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Cette croissance des cheveux semble compltement anormale moi, mais le docteur est enclintre d'avis dans la diversit!