[adamors]

If you use these superset languages day-to-day you will end up interfacing with the base/platform language at some point.

Just recently I had to figure out why the Elixir Kafka library didn't support something and I ended up using the wrapped Erlang library at the end. Without some Erlang knowledge I would have been completely lost.

[ch4s3]

I don’t exactly disagree, but what I mean is that in learning Elixir you’ll learn about the BEAM and by the time you need to peek under the hood, it’s just syntax that’s different mostly.