What is the future of learning C nowadays?

Hi guys,
I am just wondering what is the future of learning C language nowadays?

Quite important if you are looking to go into the systems side of machine learning.

Python was the first client language supported by TensorFlow and currently supports the most features. More and more of that functionality is being moved into the core of TensorFlow (implemented in C++) and exposed via a C API.

Client languages should use the languageā€™s foreign function interface (FFI) to call into this C API to provide TensorFlow functionality.