Funded by stablecoins, not a bank
Most crypto cards are prepaid: you load them from a stablecoin balance, not a bank account. That makes them accessible to unbanked and underbanked users.
What you still need
Identity verification (KYC) for compliant cards, and a way to acquire stablecoins (exchange or P2P). A bank account is optional; ID usually isn't.
Good fits
Light-KYC, emerging-market cards like RedotPay, plus tap-to-pay apps. Check the country page for what onboards locally.