bumperlicious I see what you are saying
the problem I have though is that if certain behaviours, stereotypical behaviours are the way it is for that sex, then people who behave in another way are... what?
You say an exception. Other people might say unfeminine, or odd. If there is a perception that "normal women do this" then by definition any woman who does not do it is not a proper woman.
I see on these threads a lot about how behaviours are often based on impressing a female or keeping a male. Where does that leave gay people? Or people who are asexual? or indeed those who like to do it with plasticene or paperclips?
If we take a behaviour, even if it is one that one of the sexes does display more on average, and say "this is what men/women do, and if you don't do it that is out of the ordinary" then where does that leave us in terms of understanding, tolerance and progress?
In years gone by all sorts of things have been accepted - that women's brains are incapable of understanding mathematical or scientific concepts for example. The people then thought that was a genuine difference between the sexes - that women were unsuited to rigorous study and logic, that their brains were not constructed to deal with it.
We now know that that is not true (or do we? many people would still argue that I think) and women have the opportunity to study sciences etc if they want.
My problem is that the characterisation of "women are like this and men are like that" seems inevitably to lead to pigeonholing, intolerance and loss of opportunity.
Far better to treat people as individuals - maybe bumperlicious bursts into tears at watership down but is a dab hand with a soldering iron, imsonottelling doesn't cry in public but is shit at parallel parking. Meanwhile imsonottelling's DH is an ex rugby player who does a very "male" outdoorsy job but is also a patient kind and loving father who would far rather be at home painting with the kids than out in his van.
Do you see what I mean?
I take an interest in the studies into the differences, brain chemistry and hormones and so on. it is fascinating. But i don't think those things should then be used to define individuals.