So with that in mind, you can just learn Elixir, use Erlang where you need it for some libraries. Elixir is IMO much nicer to learn, write and use. I think it is worth learning a bit about the underlying systems but I've never felt like I should have put in 10
erlang-only projects before writing larger elixir stuff.
Just to emphasize this as someone that's worked in Elixir professionally for a decade now.
It really is that easy. The interoperability between Erlang and Elixir is fantastic and the communities get along well. There has been a long time push from many of the thought leaders that BEAM (the VM that Erlang and Elixir run on) should be a community regardless of language. That way we can share resources.
When I first learned Elixir I spent all my time in Elixir. Erlang has a lot of nice libraries though, so it wasn't uncommon back when I started to reach for one.
It was a pretty gentle learning curve, you can write Elixir with no knowledge of Erlang at all. You can consume Erlang libraries from Elixir with no knowledge of Erlang at all. Then if you are like me, you are curious about how something works and you go read some library code and it's a bit odd but you can mostly get the gist of it. Then over time reading Erlang is easy enough, the prolog inspired syntax is the hardest hurdle to get over, but then you realize how much Erlang and Elixir have in common.
