Bitcoin as a financial system is made impractical in the long term by the fact that it is limited in the total number that can be issued. After the last one is issued, the intent is for the value of them to simply go up. It was proposed as an in-built method to combat inflation, however what it really is is a way for the inventor to pad his own pockets by owning a significant fraction of the total number of bitcoins that can ever be produced. In a best-case scenario, this means he now owns a fraction of the world wealth (assuming the dystopian future where everyone uses bitcoins).
The fact that it is really a huge piece of social engineering is what disinclines most governments from being too terribly thrilled about its adoption. Ironically, this may be what the inventor was counting on to promote it's adoption, reasoning that the more that governments resisted it, the more that certain groups would promote it as a form of protest/defiance.
So, if you want to adopt bitcoins, by all means, be part of a piece of social engineering malware. Bitcoin transactions are not what you want for privacy anyway. If you want to maintain private money transactions, cash is always an option.