> std::tuple seems great until you realize that most PLs that support tuples just do "(,)"s for them, in creating, binding, and naming the type.

This C++ code compiles and does what a casual reader would expect it to do:

    #include <string>
    #include <tuple>

    using Foo = std::tuple<int, std::string, float>;

    Foo foo(int a, const char* b, double c)
    {
      return {a,b,c};
    }

godbolt: https://godbolt.org/z/Koa4zYT99

I gotta be honest, this interface is exactly what I would like a tuple API to look like. I want to declare my tuple as a `tuple`, I want to give it a friendly name, and I want to explicitly declare the types in the tuple, and I want to all of that at compile time. This API is exactly the verbosity that I want; I would be unhappy with either more or less boilerplate than this.

> First-class support for these is important.

Agree to disagree.