For 1) I meant that there are lot of utilities, micrservices, small web backends, scripts, and hopefully, applications that have already been split into isolated components that can fail and restart separately (in other words someone did the work already). So if one starts dealing with those in their careers they just might never have a compeling reason to look at Haskell, F#, Erlang, OCaml and such.
Also note that quite often one way to deal with large mutable state is to simply shove it in database. Usually good databases just make it explicit what happens to shared state.
Also note that quite often one way to deal with large mutable state is to simply shove it in database. Usually good databases just make it explicit what happens to shared state.