We don't, but getting there on the web at scale is a long battle. The W3C has been working on WebPayments [1] for several years. Once it lands on most browsers

We don't, but getting there on the web at scale is a long battle. The W3C has been working on WebPayments [1] for several years. Once it lands on most browsers, it should enable websites to offer a choice between ads and micropayments. But there are lots of problems to solve first, ranging from finding the right APIs and UXs to make sure that users won't end up paying by accident, or that children won't pay with their parent's browser without their agreement, to the fact that people don't use the same mechanisms for paying al over the world, to security issues, etc. [1] https://www.w3.org/Payments/WG/ https://www.w3.org/Payments/WG/