[deckiedan]

It depends what you're trying to do.

If you want just to "play" and do some tiny projects as low level as reasonable - go for learning C first. You'll learn a lot - and then when you learn rust, the reasons why things are done that way will make a lot of sense. Also, so many low level utils are written in C - having a basic knowledge of it is really useful. But don't try to build a big complex thing in it unless you have a really good reason to (or you fall in love with C. Some people do!)

If you want to actually build something big and complex and for real world use - probably go for Rust.

If you want to build a big production system using an already established tech that's based on C++, learn that. (Eg. one of the C++ based game engines, or a C++ GUI framework, or whatever).