Google Pay, Apple Pay, and Samsung Pay work once you add your Greenlight card to your wallet on your mobile phone. However, Apple will not permit children under 13 to use Apple Pay, while Google will not permit children under 16 to use Google Pay.
Note: You can also use peer-to-peer apps like Cash App, Venmo, Paypal, etc., to send money indirectly by adding it to a bank account or debit card.