People in the U.S. can simply link their PayPal account to use with Android Pay. You can expect to see this new feature in the Android Pay and PayPal apps within the next few weeks.
https://blog.google/topics/shopping-payments/new-ways-to-pay-android-pay-and-paypal/
We’re thrilled to bring you even more options at checkout, thanks to a new strategic collaboration between Android Pay and PayPal, one of the world’s leading online payment platforms.