How does your friend deal with Processes, OTP, Supervision trees and so on? I'm a huge Elixir fan, but always thought it would be a hard first language because

How does your friend deal with Processes, OTP, Supervision trees and so on? I'm a huge Elixir fan, but always thought it would be a hard first language because of OTP, the benefits of which are kinda hard to appreciate without some experience making production software. Happy to be wrong on that though.