Depends on where you are at. Its fine in a bunch of Asian locales, but again, you would have to define Asian a little more specifically. As far as I see, only Kyrgyzstan, Saudi Arabia and Bangladesh has expressly forbid/prohibited btc/cryptocurrencies. The common feature of all these governments is they are a Muslim majority. This is curious, is there something in the Koran against bitcoin, or more specifically, speculation on it?