In my opinion, if the income from crypto is large enough and stable per month, the government may impose taxes on our crypto income, meaning that the tax is based on fiat currency resulting from the withdrawal of exchangers.
But how will they implement it?
I mean they can't just pinpoint someone using cryptocurrencies. Those investors are the only ones that know they have cryptocurrencies, and most of them are really hiding that they are earning a lot of money from it. At the end of it all, it all depends on the person if they will pay for those taxes, I am not saying that all of us are like that, I am saying that there are those kinds of people.