Why is adult entertainment so generic as opposed to children’s entertainment?

The media industry that is made for children has adventure video games, detective mysteries, all kinds of work out toys, all kinds of recreational crafts, all manner of creative stories, all types of colours and decorations, while adult hobbies is always the same, which is designer clothes, wine, steak, hikes up mountains and hills, romantic dates, swimming pools, and trips to New York or Tokyo.

Why is adult entertainment so generic as opposed to children’s entertainment?
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