It's the same real world use as using Wallet of Satoshi, but with significantly better privacy, distributes custodial risk, and helps decentralize the lightning network more by lessening the need for large custodial wallets.
Discussion
Also you can print ecash notes as QR and give it to someone as real notes. Think of the unbanked, having issues even with mobile money fees across Africa, for example.
They can have stash of nuts and bring some to the local grocery, that also operates a mint.
A lot of trust involved but yeah, that's a good use case.
Almost paper one-use opendimes.
But does cashu distribute custodial risk? I thought it was only federated solutions that did that.
In the sense that instead of a few large custodial wallets where a bad actor can steal the funds ofany thousands of users, instead there are thousands of Cashu mints where a single bad actor can only steal the funds of a few users.