I have a substantial library with those functions for C#. Why not use Linq? Because I see people struggle with it (usually external clients who license our code

I have a substantial library with those functions for C#. Why not use Linq? Because I see people struggle with it (usually external clients who license our code and outsource development); when they do, they resort to loops. So I wrote these simpler functions which are implemented mostly with Linq but they keep people who do not understand linq (again, yes, they are there and rather a lot of them) from messing up the codebase. Advantage is that these functions translate to any other language, while Linq doesn’t, so we have the same (partially implemented) semantics for the same things over a few languages we use.