Like, let's say I want to send you $0.10 right now. I would just go into Robinhood and send 0.1 USDC to you on Polygon or Solana, that would arrive in your wallet instantly from a Robinhood-owned address, you would have no idea who I am or my previous transaction history. Robinhood also owns the private keys and account recovery process here - it's just using blockchain as the payment rail.
Go ahead and post your address and I'll send you $0.10.