Variadics are rarely useful, but when you need them (generally in highly generic library code) you really need them. (I don't know C++, but am familiar with the

Variadics are rarely useful, but when you need them (generally in highly generic library code) you really need them. (I don't know C++, but am familiar with the pain of not having variadics in Rust, and the piles of macros required to work around it)