Heres a concept for all to consider ; in real terms, the MAN is the " follower.

He suggests/initiates a direction, the lady commences to move, to create space into which the man may "step " . Its a law of dynamics; if a "force meets a stationary object, then theres a split second ,when that " force ", is " arrested", before allowing it to continue in its designated direction ( the created space by lady (in fwd directions , for e.g. ).

This, of course, is predicated upon the dynamic, caused by the "leaders "motion from the core .