Aside from the money aspect. Why do we need two different types of screws, and therefor two different types of screw drivers (and drill bits and everything else). Is there any actual

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Why do you need to use an automatic screw tightening machine? - Quora

ELI5: Why are there so many types of screws? (Phillips, flathead, Allen, etc.) Why isn't there a single, standardized type of fastener? : r/explainlikeimfive

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What tool do workers use to unscrew 'one-way' Phillips head screws, like those used on bathroom stall panels? - Quora

Why do we need two different types of screws, and therefore two different types of screw drivers (and drill bits and everything else)? Is there any actual difference? - Quora

Why don't all screws have the same head? - Quora

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ELI5 Why we have two types of screw heads/drivers? : r/explainlikeimfive

How come screws and bolts don't loosen over time? - Quora

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