Aileen, never thought equal opportunites meant women would take up such sports
Well you've just learnt something new.
Women's football (if you ever get the chance to see it on TV, then watch it because it's so pathetic that it's funny) is so popular they even have their own World Cup - http://www.fifa.com/womensworldcup/index.html
As for rugby, I've never watched it but I'm sure it's just as farcical, and I can just imagine what part of their anatomy will be the most grabbable in scrums, although maybe they wear heavily reinforced bras??? Also it too has its own World Cup - http://en.wikipedia.org/wiki/Women's_Rugby_World_Cup
But you have to remember that, until about the 1920s, hockey and cricket were also male sports yet became quite acceptable once women started playing them. However, neither has the same physical body contact that football and rugby have.
Women can take up anything these days...........they just get paid less!
You're forgetting about tennis, Caz. Women players howled for equal prize money in Slams and got it, something I think is grossly unfair. If they want equality with male players then let them play 5-setters. Let's face it, today's women players are strong enough to do so.