You can read more about it on:
• Techcrunch: https://techcrunch.com/2017/05/09/current-launches-a-visa-debit-card-for-kids-that-parents-control-with-an-app/

• Mac Rumors: https://www.macrumors.com/2017/05/09/visa-and-payments-startup-current-launch-debit-card-for-kids-that-ties-to-parental-control-app/

• The Verge: https://www.theverge.com/circuitbreaker/2017/5/9/15599020/current-app-controlled-visa-debit-card-allowance-kids-spending