[DavidVoid]

Swedbank offers debit cards to kids as young as seven [1]. Depending on the kid's age (and what the parents configure), there will be different limits on how much the kid can spend.

Swish is the de facto standard for sending money between individuals [2], and that's what grandparents tend to use to send money to their grandchildren. It's fee-less (for person-to-person transfers use at least) and it connects your bank account with your phone number. So if anyone wants to send you money, they can just open Swish and enter your phone number (or scan a QR code) and send you some. You also have to sign the payment with the BankID app, which is the de facto standard for authentication [3].

And when I write de facto standard I really mean it. 99.9% of Swedish residents age 18-67 have BankID (8.6M users), while Swish has 8.7M private users (93% of which use Swish at least once per month).

[1] https://www.swedbank.se/privat/kort/bankkort/bankkort-master...

[2] https://en.wikipedia.org/wiki/Swish_(payment)

[3] https://en.wikipedia.org/wiki/BankID_(Sweden)