Because C/C++ needs too much time and effort to create something. Even if you're using basic things like strings, arrays (vectors), pointers.. Syntax isn't fast readable, structure is unclear. If I get even some simple compiler errors in Visual Studio.. I'm completely lost
In Lazarus/FPC I need few seconds to find problem and fix it.
The only thing I'm worried about is performance. FPC compiler efficiency is far behind C/C++ Visual Studio. But it is still evolving slowly and I'm not making 3D games. Next big plus is that I can create level/map editors superfast, just put SFML window in LCL Form (Panel).
I'm also learning C++, which gives me bigger knowledge and overview. C#, Python, Java are too slow.