Most of the software written today is still written in C++ and this has been the case for many, many years.
Not only is C++ popular, but it is also a very relevant language. If you go to GitHub you will see that there are a huge number of active C++ repositories and C++ is also extremely active on stack overflow.
There are many, many leading software titles written entirely or partly in C++. These include the Windows, Linux and Mac OSX operating systems!
Many of the Adobe products such as Photoshop and Illustrator, the MySQL and MongoDB database engines, and many many more are written in C++.
Leading tech companies use C++ for many of their products and internal research and development. These include Amazon, Apple, Microsoft, PayPal, Google, Facebook, Oracle and many more.
Can you see how learning C++ will open up more career opportunities for you?
If more professional companies are using C++, it stands to reason that there is going to be more of a demand for C++ programmers.
But the main reason programmers should probably learn C++ is because it is so powerful!