If you serve both legal entities and individuals, then banks will stay away
what difference does it make to banks who will invest money?
Usually, regulatory authorities pay more attention to the movement funds from legal entities, and banks have even higher control. Much depends on the country and its laws.
You see how the authorities are struggling with anonymous currencies. Especially in the US, authorities are trying to ban the trading of almost all anonymous cryptocurrencies. Most likely in the near future, anonymity will only be ghostly. There are pros and cons here.
I think that anonymity ends at the moment of exchange of cryptocurrency for Fiat currency. Although if you only use cryptocurrency, you can remain relatively anonymous, but this is not always possible.
But what about the fact that all cryptocurrency holders will be forced to go through the KYC. You yourself see today almost all exchanges require verification. Yes, and as for the exchange for fiat, today there are also special opportunities to avoid identification. Perhaps you yourself should have heard.