C# is usable for creating apps on Android, iOS, and Windows. Seems pretty useful. But, no doubt, all programming languages used today will eventually disappear.

>Which tools I will work with in the next few years will depend mostly on what my employers/customers require. I am not convinced that C# will be around forever, or at least remain "the god of programming tools". So many things are happening these days, new devices arrive every day, so what's the right tool today may not be the right tool tomorrow. Too early (or too late) for me to change my course.