Because they're all different types, with their own strengths and weaknesses? If all you've got are kunai and shuriken, you've only got a handful of strategies you can use with them. If you've got a katana and a staff and a kusurigama and senbon and flails, you've got that many more combinations of things to do. It's only being practical.
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Because they're all different types, with their own strengths and weaknesses? If all you've got are kunai and shuriken, you've only got a handful of strategies you can use with them. If you've got a katana and a staff and a kusurigama and senbon and flails, you've got that many more combinations of things to do. It's only being practical.