30 years ago people were saying the digital revolution will allow us to go paperless, it never happened. Computers are far too insecure to rely on digital invoices for instance. If I buy online I print my invoice. that's a hard copy in my sweaty hand. Even better is a hard copy in my hand with a signature. Okay even those can be scammed but with a lot more difficulty. We will never go paperless even if it means the only paper used is that from local printers.