Do you think its a good idea to have paper Cryptocurrency in circlelation too?
Like we have fiat currency digitally we also can have Fiat Currrency as paper.
Consider the amount of risk involved when you are carrying the private key of your bitcoin wallet in papers, the solution is to hold a certain amount as tokens and a centralized authorities can print paper currency with bitcoin as a back up valuation and put into circulation but whether any government will allow those is another question.
The closest thing we can have is a prepaid crypto debit card and it is available now.