Indeed, vouchers are an excellent alternative.

If you paid for the vouchers with CC, the voucher minter knows about you and can trace every voucher.

You are just adding an extra step.

You're right. Scalability is a problem.

Vouchers would be an alternative that does not expose my banking information.

tomlaies

That doesn't sound scalable. Platforms like Hodlhodl, Peach and Robosats are kyc-free for me, and scalable. No service collects my data, only the counterparty has access to it. And if you use e.g. Revolut, the counterparty only sees a first name. But good luck advocating for in-person-bought-btc-only.