Is this a personal or business decision you are talking about?

Can you elaborate the cons that made you decide to move away from Python, C++, and Julia?

Julia makes sense to me, as the youngest production language and community.

But Python? It is the #1 most popular programming language globally. C++ is also very popular. This means you can easily find people to hire globally (making business easier and more economical). You can also easily find code doing almost anything you want---speeding up time to value and time to ship.

I'm wondering what cons are driving your decisions to move on from Python and C++?