In my experience there is another kind of expression problem. It's usually something like this

    "a:b:c".split(":").first # Ruby

vs

    String.split("a:b:c", ":") |> List.first # Elixir

The length of the two statements is telling. Luckily Elixir has the |> and I don't have to write

    List.first(String.split("a:b:c", ":"))

OO is generally more convenient to read. It's also more convenient to think into, even when I was young and I looked at C and Lisp without much priming from previous experiences.

Functional has other advantages. I quote Joe Armstrong on that: [with OO] "You wanted a banana but what you got was a gorilla holding the banana and the entire jungle." That wasn't much different with plain C though, which could do structs and be somewhat object oriented too if you coded in the right way. And you could end up with a jungle of functions as soon as you write enough modules that need each other.