I don't see a particular reason to conduct every transaction on-chain, or at least on a public L1. At any rate, I was mostly replying about your login data being public which isn't true.
Right now I use my country's currency, do you want me to go to a mix of currencies like I'm playing some sort of Android free to play game?
That's just adding complexity to my life for no obvious reason.
I dislike OldFi and want to contribute to a new, healthier system to serve people in general. But, short term, risk of DeFi is obviously higher due to its imaturity.
OldFi has been maturing for 100's of years. Perhaps we could argue 1000's. It'll take at least 20-50 more years to reach a similar maturity in DeFi.
By maturity I mean: people understand the risks and know what to expect.