Someone once told me ...

[lynx]

I do think that ALL people have became bisexual once they are born. But then, during upbringing, education etc., taking all the family- and social stereotypes in, looking at all the world, a child's getting some points of view and is learning to make it's own choise. and this skill is laying over some genetic individual peculiarities - so a child is gitting some special character, temper...
so I really think that there's no any extreme points of view - everybody is bisexual making a lot of choices living it's own live.
And why women exactly? 'cause they're much more emotional and sensitive and always are reflecting on "who am I" and "what do I really feel". So women go on choosing much more longer than men (that are always too busy for this silly thing prefering to drink some beer or play ther special men's games)