I went to school in Northern Ireland.
A nice girls’ grammar actually.
Our R.E teachers were:
an unmarried devout Baptist who was a self professed virgin (in her mid-50s)
the wife of a Presbyterian minister who had 5 kids
the wife of a CoI minister who had no kids
All taught other subjects as well (History, English, Home Economics).
R.E was basically teaching a few Bible stories and the the basics of various world religions as well as ethics- nothing the Buddhists, Jewish or Hindu students objected to.
Our school taught the mechanics of sex in Biology and the touchy-feely relationships and contraception stuff in the PSE (Personal and Social Education) classes in sixth form.PSE was taught by the RE teachers and the gym teachers-definitely no overt religious theme and abortion was discussed in terms of what was and wasn’t legal in Northern Ireland. I have vivid memories of one RE teacher handing round diaphragms and femidoms for “demonstration purposes”.
No compulsory “silent scream” vewings.
I have to admit that I actually ended up not taking RE past the age of 13- I took Latin as an eleventh GCSE, so my parents wrote a note excusing me from RE so I could go to a one-on-one tutorial with the Latin teacher (who has since, weirdly, become one of the few female Church of Ireland ministers in Northern Ireland).
If you don’t want your child to go to the RE classes all you have to do is write a note to the school opting them out- it’s not exactly a huge deal and I think about 15 other girls had opted-out by the age of 18 (mostly so they could study for their A-Levels, some because the were atheists, some because they would rather sneak off the campus and smoke instead).