Comment by danielmarkbruce

Lots of people use and used X, for various X. Various auth only companies exist, like Okta. They don't care for your "data", they are just trying to log you in. Same for Ping, Oracle Identity (or whatever they are called these days), Amazon etc. Then there are services where you use a physical card for auth (many federal government jobs require people to auth using a card which basically just holds keys). There are many auth services with waaaaay more users than any web3 wallet.

The statement that web3 doesn't solve anything which hasn't already been solved wrt authentication... is about as close to a true statement as one can make.