[Jare]

When I lived in Chicago back in 1998 I distinctly remember feeling that the common use of credit cards (and mobile phones) was much more primitive compared to Spain. 10 years later, I needed to use cash way more often the 3 years I lived in Vancouver than the 3 years since I came back to Madrid. Heck, I haven't visited an ATM in at least 3 months.

That said, you are probably right that the technical education and trust needed to embrace bitcoins is much less common in Spain. I first heard of bitcoins in, of all places, an episode of "The Good Wife" couple years ago, and have only found a handful of people who know about them. I imagine this will be changing rapidly in the following months, just like it's doing everywhere else.