well my friend i dunno from where u deduced all these things?
guru gobind singh ji never said that these five K's were for khalsa. these were for sikhs and sikhs mean both male and female.
more so what u have said about kara is that it was to be used for defence, but my frind it is there for you to realise, when any work you are going to do, that God Almighty is looking at you and hence you shouldn;t get involved in any wrong deed.
according to guru gobind singh ji, men and women were alike. he never ook them separately and as far rehat maryada laid by Him is concerned, it is the same for both the sexes. so what i think is that women should keep hair as well.
well this is what i think, based on whatever i have heard or read about sikhi uptil now. if anyones thinks that i am wrong at any part, i am sorry for that and please do lemme knoe about that.
Waheguru Ji Ka Khalsa
Waheguru Ji Ki Fateh.