Great point. The lack of backing from a country as a currency draws instability fears to the citizens as well. The Dollar is only stable because the US backs it and it is the widely known currency. You could put popcorn in its place, if it was US backed and widely known..than popcorn would be the currency.
Eh, yeah, but if the popcorn fluctuated 50% in value within a span of weeks, it still would be a shitty currency. That's the point here. Do you want your paycheck to lose value before you can spend it? Hell no, you wouldn't. Sure, it'd be nice if the value
rose, but that's certainly not a certainty. Get it?
This is only one reason among many why bitcoin isn't doing so hot as real money. It's far too unstable to use for everyday things or to receive a paycheck in. I wouldn't opt to get paid in bitcoin, would you?