How to enable point smoothing

I cannot seem to make smoothing for points activate. In the documentation it says that ofEnableSmoothing only works for lines, so I thought I'd just insert the openGL by hand:

glEnable(GL_POINT_SMOOTH);
glPointSize(5.0);
ofEnableBlendingMode(OF_BLENDMODE_ALPHA);
mesh.setMode(OF_PRIMITIVE_POINTS);
//add vertices...
mesh.draw();

None of this works. Why isn't smoothing for points implemented in some openFrameworks method? Shouldn't be too difficult to implement, no?