The tool analogy is flawed. Languages that move fast and break backward compatibility are tools, but organic. If you leave them in your toolbox for too long they start to rot.

This does not apply to those languages that do not get updated (bash?) and that does not break backwards compatibility (perl? but without CPAN modules). I know that my PHP tool has rotted even though I was actively using it. It moves too fast and the frameworks I was using are no longer any popular - should've learned symfony instead of yii, now laravel is taking over