I want to use concepts, but it's not integrated with the STL yet (which is a baffling decision - aren't you supposed to dogfood new features into the standard l

I want to use concepts, but it's not integrated with the STL yet (which is a baffling decision - aren't you supposed to dogfood new features into the standard library if you want to encourage its usage and test its strengths and weaknesses?...) My code is not that heavily templated (and wouldn't benefit that much in doing so), so the only reason concepts would be good for me right now are having better error messages in other heavily templated libraries like STL and Eigen.