Uh... so exactly why should I stop using C, Python or Java (which are mature, distributed and have a lot of libraries) for a language which does not offer advan

Uh... so exactly why should I stop using C, Python or Java (which are mature, distributed and have a lot of libraries) for a language which does not offer advanced new features, about no libraries and also features some... akward syntax? (Don't get me wrong, I can live with syntax with is not C-like, or python-like, but unbalanced braces are certainly just akward).