FoodUnit - on sharing, group actions, awareness raising, etc. yy, yy and yy again! 
WRT someone who has been routinely belittled every time she has opened her mouth - Of course there is some support in schools for children who need it. I wish there were more resources. I think the shortfall of resources in education is a massive problem in England. I know PHSE provides for this, there are some superb teachers, but they need to be better resourced.
blackcurrants - I agree also. In reality noone who isn't fairly high status and also very well liked/recognised as 'a bit of a joker' could get away with 'Moving on!' in the workplace. And I hear what you're saying WRT assertive women in the workplace and understand that in some environments that can be a massive problem (and, come to think of it, for me, if I hadn't had a few very, very impressive, intelligent, supportive and sharp-eyed women as senior colleagues then that fate would very likely have befallen me). In theory, of course, when this happens we could approach HR, claim discrimination, but in practice very, very few of us want to risk that route. So... back to group actions, etc?
Perhaps, also, though, a reclaiming of "assertive" - and distinguishing it clearly from "noisy", "obtrusive" etc. - and associating it more with "efficient", "intelligent", "steamlined" (and the status and rewards that those qualities should bring) might help free it from its (undeserved) association with traditionally 'masculine' qualities.
Hope that makes some sense.