I would only use React/Redux for a complex app that's going to be touched by a lot of people. That's where it really shines. Elm is a non-starter in these situations -- I can't seriously propose it for a project because the learning curve is astronomical.
Also, I think simple Hello Worlds are a dangerous thing. They convince you that a tool solves all your problems until three months later when you notice your foot's been blown off.
Also, I think simple Hello Worlds are a dangerous thing. They convince you that a tool solves all your problems until three months later when you notice your foot's been blown off.