are these people pressed by culture as well.i don't know about the UK or Canada. but in the US there is a nice number of all boys/girls uni. and these men and women don't come out unprepared for the world. they are quite intelligent. my cousin went to an all boys uni he didn't come out unprepared for the real world. i think you also have take into account the individual's'needs.soso people may feel better studying in an co-educational environment and other's may feel more comfortable studying in a segregated environment.