Very clever idea, but it'll be hard to bring to life. Its not like coinbase and such don't want to trade securities, its that regulations make it very hard to realise. hopefully desico will be a pioneer in this area
They will pioneer the space for sure why dont you have a look at this article on medium & have a look around the Desico demo platform its very impressive link👉🏼! Please check DESICO pre final demo version of platform they are building. Your feedback on it is highly appreciated! https://medium.com/@desico.io/exclusive-preview-of-desico-platform-now-available-79ba7702ca34
I agree with you, love the Desico demo platform very easy to navigate & use enjoyed the display & look of the platform, can see this being a big hit for seasoned & new investors with safety & security peace of mind.