I would say that it depends on the sophistication of the user. I work for a crypto company and this is our belief. Users hold their own keys and must sign thei

I would say that it depends on the sophistication of the user. I work for a crypto company and this is our belief. Users hold their own keys and must sign their own transactions. Of course that means that things like limit orders can't be done (easily) and it means all trades have more latency and more costs (due to fees for sending transactions vs. db entry). However, we've found it difficult to get market traction as a lot of people seem to prefer the ease of custodial wallets.