I pay all my cash in via a machine in the bank, I have used 2 different banks over the years with no issue doing it this way.
This move towards cashless is something I have been wondering about lately myself simply due to how the pandemic has moved things on so quickly, 2 restaurants I have been in recently told me they were cashless and a few shops in my town are that way too, although most places will still take it.
I have looked around to see if I can take payment safely in other ways. I have had clients tell me they have paid by card with some providers, but in every case it's via a service that does not allow sex work, if anyone made a phonecall to the card payment company, the provider concerned would get into trouble, and sods law says that would happen to me. All services I have looked at don't allow us to use them. I am really reluctant to use bitcoin, most clients don't want to do bank transfer as it shows you their name, and mine too, so not discreet. If anyone does know of a safe and honest way of taking cashless payments I would love to know.