Ledger on keychain

So a coworker of mine has a nano ledger s. He doesn't know I'm a hodlr as well. So, knowing what it was I decided to mess with him a bit and asked what was so important he needed to hodl it on a flash drive on his keychain everywhere he goes.

He boldface(or should I say hodlface, I'll show myself the door after this I promise.) Lied to me and said it was just some apps and docs he transports from home and work. I genuinely wanted to punch em in the face and run off with it. Which made me think, doesn't it completely defeat the purpose of buying a hard wallet if you literally have it on your keychain everywhere you go?

Also; I do not condone the punching of owners of Ledger Nano S devices for the hopeful procurement of the Ledger Nano S.