The TIOBE Index is an indicator of which programming languages are most popular within a given month. According to the TIOBE ...

Mastering the C programming language - a classic code environment used to build software, apps, and whole operating systems - is a great skill, and Mac OS X makes it easy to learn.

The first programming language you learn will likely be the hardest to learn. Picking something small and fun makes this less of a challenge and more of an adventure.

C++ is currently the fastest growing programming language in Tiobe's popularity index and it's probably due to the arrival of C++20.