of course it can be taxed, if a citizen that use bitcoin want to declare his revenue from it, it will be taxed like any other fiat money
taxing directly bitcoin is a bit more difficult for the government if their citizenz are not willing to help by declaring their income per year
I highly doubt that someone would declare his income himself as most of the investors of bitcoin are using it as a tool for merely tax evasion. Expecting complete income declaration from such people is highly difficult considering that no govt. Can tax merely a private key or wallet address.
Why wouldn't it be taxed. It is money. These kinds of debates are a good thing for bitcoin and can help with further adoption by making newcomers see it is treated like a real currency.
What makes you say that its money? Its merely a commodity or more precisely an investment if we look properly. A currency is easily transferable moreover for the purposes of tax must be valid in eyes of law too. Bitcoin shows no such traits. It can only be taxed once it is realized in form of local currency.
Most Japanese (like most westerners, I think) are still pretty much unaware of the profound significance of the blockchain, much less how it might change the world. The typical Japanese person knows very little about bitcoin, though there are enough buying it to strain the exchanges now.I think many see it as a way of hedging against a collapse of the yen, though I expect purchases will pick up.
I think you are mistaken. Japan highly appreciates bitcoin and blockchain moreover the fact that japan is the birthplace of bitcoin makes them even more attracted towards it. I think japanese people know much more about it than any westerner and they have incorporated its use much widely than western world. Even the japanese authority openly appreciates the beauty of blockchain and bitcoin.