She works in Australia. Maybe things are different in other jurisdictions.
To solve this use actually useful currency that is private and fungible by design like monero.
Imagine you could get a dollar bill* which value could evaporate and even put you in criminal trouble because X amount of unrelated money transfers before it got to you it was used in something criminal.
*dollar bills are also not fully fungible because IDs and currency tracking but those aren't implemented everywhere unlike with btc.
Fungibility: gold = monero >>> dollar bill >> bitcoin and most other transparent coins
I’ve literally never heard of such a thing. I have trouble believing this is actually true, especially given there’s no way to select for it on the exchanges.