I'm in the camp of the fewer regulations the better, but one thing I think needs more regulation is how the private sector and public sector interact. There is just way too much conflict of interest when they mix.
Individually weak people can band together and vote to steal from the less weak, but smaller groups. Does voting and being represented make stealing moral?
Learning Erlang/Elixir is like learning a new paradigm, or a new way to think about programming. You can then apply these concepts to other languages. It's made me a better programmer.
Kotlin, IMO, is just a "better" java. It would be just learning new syntax if you are already familiar with java like languages.