The ages of my grandchildren and children mean I don't have up to date information about this.
But I now need to know if this is a topic that schools typically cover in PHSE. Is it something that parents today routinely discuss with their teenage children in addition to advice re contraception/STDs etc. And is it - as far as MN parents - something that 15 or 16 year olds consider (before or after) sex either with a boyfriend/girlfriend, or in a situation where, for example, there was a party with underage drinking.