This sort of system is really nice for visitors, tourists etc., though.
I live in London and recently passed a convenience store whose signage advertised the usual stuff: "Fresh veg. Off licence. European specialty foods. Oyster". I was genuinely confused for a second that such a place would carry such short shelf life seafood...
Pre-pay card are gone here. The only people I know now who have an Oyster branded card are those who get discount or free travel.
Occurs to me Oyster may still make sense for travelers whose credit cards have foreign transaction fees.
The keywords one should be looking for is Osaifu-Ketai.
iPhones are the exception, and just takes some finnicking with the settings.