Earlier quoted context omitted.
Children and old people here all use cards or apps. And derisking is illegal, so you have to provide a bank account and cards to anyone who wants. The high risk customers just need more follow-up on terms of AML.
Where are you based where derisking is illegal? Here in the UK it makes the news fairly frequently when someone notable becomes unbanked because of CIFAS or SARs or similar. Also, I wasn’t able to get a debit card until I was 12, but perhaps that has changed over the past few decades.
My kids got a card at around 5, but they are older now. Not with visa/mastercard of course :)