Women make great monarchs. For example our present Queen, Victoria, Elizabeth the first. My people the Cree called Victoria the Great White Mother. I'm saying that that change won't stop there. Why discriminate against the second, third or fourth? Some of them have been our greatest monarchs. Being an aboriginal I admit to being biased about following tradition.

Our greatest monarchs have been women, but they didn't get there other than being second best option.  You omit Mary I, or bloody Mary, and while Victoria and Elizabeths have been excellent, they have had problems of their own, and probably get a kind view due to their 'golden age' status.

I think it would make more sense that the first born is next monarch.  Other methods, such as Tanistry have been used in the past, but it tends to be very time related.  People now would be happy with the Princess Royal as Queen, but would this have been the case when she was Princess Pushy?  Andrew was a Falklands hero, now he's seen differently.