they were until the majority of the non caucasian residents with british passports were suddenly not british enough when they were planning to move to britain before the place was given back to china
not really, sex education of old was really reproduction education or one aspect of our biology. 'sex' as in carnal indulgence is another topic altogether
if newer housing estates had to have roadways of sufficient width to allow for on street parking and room for HGV's to get through at the same time these issues would be less so
all subjects should be free from bias but indoctrination is the norm when it comes to sex and religion and even historical events get the propaganda make over from 'our side'