This is a bit more than just red tape madness, it's a strategy to make businesses more transparent. This is about trying to reduce non-reported transactions and too many people dodging their reporting. Even if the rules for cash registries and reporting are detailed, a) that's not really expensive for businesses - it's easy to automate and there are quite a number of competitors; b) compared to accounting and tax rules, they are dead simple.

Receipts or invoices are the basis for a firm's whole economic activity, including the underpinning of their financial reporting, their tax burdens etc. And businesses failing to provide receipts erodes not only the tax base, but also any rights a consumer may have.