There's still no answer to that question. If I needed speed, I could explain why. But there's no answer to the question of why you don't need speed.

I need a bottle opener to get the lid off a bottle. I need it because I need to bend the lid. I don't need a scarf to get the lid off a bottle. Why not? There's no reason you don't need a scarf to get the lid off a bottle; it's just not that useful.