In Australia you have to check-in with a QR code to visit children's playgrounds:
https://www.knox.vic.gov.au/whats-happening/news/playgrounds...
https://www.knox.vic.gov.au/whats-happening/news/playgrounds...
Qualitatively, the difference between the two is academic. I'd take pearl-clutching on this subject seriously if we didn't already scan ourselves into every establishment we patronize, by swiping a piece of plastic. This ship has sailed decades ago, thanks to cash-back, and not actually having to deal with cash, either on my end, or the merchant's end, and thanks to everyone owning a cellphone (Which is a device that broadcasts your location 24/7.)