Sooner or later you'd have to convert that ill-gotten crypto to fiat and that's when you become most vulnerable. And then there's the issue of what if the price suddenly collapse. What, you gonna halt operations and wait for it to bounce back? Unless you're transacting cross-borders, you're probably just really better off using fiat. It's tried and tested! Even government swears of its usefulness
Fiat is basically invisible if it don't go through banks. Just set up a small business that accept cash payments and you're done! Sure might have to pay taxes on that (can't beat the biggest criminal of course) but for all intents and purposes, your money is "clean".
Converting crypto to Fiat (cash) wouldn't be necessary if there's a decent number of merchants and businesses accepting crypto as payment method. Of course, there's the problem of price volatility. But that can easily be solved via the use of decentralized stablecoins like DAI and USDJ. The reason why criminals are still using Fiat it's because of its ease-of-use. Not to mention, you can use Fiat (cash) when there's no Internet access whatsoever.
I'd prefer that criminals stay away from crypto as possible, so the industry can come out clean in the long-run. Otherwise, governments will try to stop crypto by making it "illegal". We're living in uncertain times, so anything can be expected in the future. As long as the number of people using crypto legitimately succeeds those who don't, there should be nothing to worry about. Just my thoughts
Fiat is still in demand by criminals because it is easy to use, and easier to spend. Moreover, there are still quite a lot of people who don't understand
how to use crypto, it's too complicated for some people to use crypto, while fiat is used by everyone in the world since childhood. So it's very natural
that many criminals have chosen to use fiat until now, and I don't understand if there are politicians who say crypto is widely used for illegal activities.
Even though it is clear that fiat has been used by criminals for a long time, so there should be more criminals who use fiat.
We as part of the crypto community definitely want crypto to be legalized by all countries in the world, so it's a bit advantageous to know that
criminals use fiat more than crypto. But the problem is that the government's view of crypto is already bad, so for now it is quite difficult to expect
all countries to legalize crypto, because there must be some countries that decide to ban the use of crypto. Perhaps this is due to the lack of
knowledge that some state leaders have, even some state leaders have misleading information about crypto. But over time, many countries will
realize the importance of legalizing cryptocurrencies.