The letter was addressed to ds2, who is only 11 and very young for his age.
It was a "sexual health questionnaire". I realise that many children are becoming sexually active at a very young age and it is important that they are accessing appropriate health information.
But the whole tone of the mailing was written from the assumption that the reader was sexually active. A very early question was:
WHEN did you become sexually active? (with options to tick - no option to tick not yet or never).
What type of contraception do you use? (No option to skip this question).
I don't know what the legal position is, but I think if GP surgeries are sending out this kind of thing to such young children, it should go to the parents with a covering letter. Not sent direct to the child.
And I think 11 is very different from 13 in this case.