[Bringbackthedraft]

One word, “protection”! What ever it takes to protect one’s self from violence. What if he used a #18 Stilson wrench instead? I could never understand the big deal of a switchblade, when a lockback can open with the movement of your thumb just as quick.

[marktwain]

I could never understand the big deal of a switchblade, when a lockback can open with the movement of your thumb just as quick.
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http://gunwatch.blogspot.com/2015/02/how-switchblades-were-banned.html

Good synopsis of how it happened.