I went to a single gender school for YEARS,and still resent it,cause it was very hard to catch back up with the opposit sex and not see them as aliens .When you go to a separate sex school,your only chance to see a guy is by going out with him.and you can forget about feeling so comfortable and natural with his presence to contemplate the idea of having a male friend as a confidant or just as a nice company.By not having the opposite sex around you all the time,as it's meant to be by nature,you start relegating it to a purely sexual function!!!While by going to school together,we learn to know each other and interact.And who sais your sex's company is the best?!I would have gone crazy if at high school I only had female classmates!!First of all,a whole chunk of awareness wouldn't have happened,because during classes,boys and girls react differently to information and propose different questions and behaviour,with the consequence that differnt points of views lead to different perspectives of the proposed lessons. when i was twelve,and suddenly had to cope with a mixed classroom,it wasn't easy at all.I was the only one coming from a single sex school,boys knew that and knew how awkward I felt.For two years I was the aim of every nasty joke,little abuse or offence in that class.It changed though,and once my personality started forming,I realized boys were a much more interesting company to me than girls,and now all the friends i love most from school are boys.and they've been a precious presence.I think that somewhere I hold it against my mother for sending me to a single sex school in the previous years.Just because she was scared of the interaction between the two sexes (which schoolboy didn't hide behind some corner of his school to show a female classmate what's the physical difference between girls and boys?!),she imposed me that.and I think nothing is more dreadful tha a whole class of younggirls,all developing competitions against each other,and gelaousy,and the whole lot!!And i can bet for boys it's the same,together with,for example,discriminating a more delicate boy calling him 'girlie' or a masculine girl saying she's uncute. Those attitudes towards each other - glances,confrontation,and the early awakenings of some sexual call - are going to happen anyway.There is no way to avoid them.But if one parent lives it up to his kid to find his own why,through everyday life where the opposite sex is not a forbidden,'different' thing,well,chances are that they'll come out of it happier and with a greater sense of respect.Sorry for the lecture,guys,but I'm for mixed schools- different sexes,different religions,etc... -as the only way to educate to tolerance and mutual appreciation.It guarantee it works.