Why don't Funcs accept more than 16 arguments?

Question

Since Javascript is the language that I am the most proficient at, I am familiar with using functions as first-class objects. I had thought that C# lacked this feature, but then

Answer 1

Why is there a limit anyway?

There is opinion that function probably should not have more than 3 arguments. If it has more, it becomes increasingly harder to understand. Of course this may not be the reason why it is this way in C#, but this limitation may not be such a bad thing after all.

I would argue that even this limit of 16 is way too much and is encouraging bad design choices already.