[wojciii]

This is my current issues, but the more important issue is that cash transactions are being monitored - even small amounts. This means that cash is more or less becoming illegal or at least not approved by the people in charge.

Edit: not indeterminate source, but a know large crypto exchange.

[moooo99]

> but the more important issue is that cash transactions are being monitored - even small amounts.

How do you come to that conclusion? Monitoring cash at the point of issuing is, when talking about small sums at least, impractical if not impossible. Money laundering directives usually aren't concerned with small cash transactions on the side of the consumer. It's pretty much only relevant if the source of the money is unclear/dubious and/or the sum is very large.

Judging by your examples, both of the examples mentioned above seem to apply.

> Edit: not indeterminate source, but a know large crypto exchange.

The exchange is not the source, it's the exchange. The question the bank has to answer is "where is the money from" and since you just exchanged the money, the question extends to "where is the BTC from"?.