I've explained bitcoins to a lot of people, and the first thing people usually say is something like: "isnt that illegal?". As soon as something is online, for free and can not be controlled by the government people automatically assume it's illegal. That's interesting in many ways, but it's also one of the biggest problems for the currency. For all us investors, we want BTC being stable and deflationary and the best way to achieve those qualities would be to bring more people in on the currency. So when explaining the currency it's a good idea to also inform the one you're explaining the issue to that Facebook have their own currency ("Credits") as well as Second Life and World Of Warcraft, just to name a few. It's not illegal in any way. It's good to be clear on that: it's NOT illegal. It's legal. I think it's beneficary for all us if we also include that information in our explanations: it's legal.

best, GA (investor/developer)