@gendercritter
"a) teenagers are full of hormones and will have sex on occasion on overnight trips"
You're right - ALL teenagers are full of hormones and will on occasion have sex on overnight trips. It is the job of guide leaders to safeguard all children from underage sexual activity, regardless of sex, gender or orientation. Whether or not your daughter has sex or gets pregnant is ALWAYS subject to safeguards working and if you don't put your faith in safeguards, you're going to have to put her under lock and key.
"b) some males are unfortunately predatory whether they're trans or not"
Again, you're right - but so are SOME females. Should we ban all girls from GG? We have to accept that SOME PEOPLE are predatory and we have to focus our energies on identifying predatory individuals rather than ostracising entire groups.
"c)most teenage girls very much value girl only spaces, and need and want privacy at certain times such as when they're showering, changing and sleeping."
Agree about privacy. Every individual has a right to privacy and bodily autonomy. This is a very modern challenge and once again, if you refuse to put any faith in safeguards you will have to shut up your daughters. Is there any evidence that "fake" trans girls are using female spaces to engage in sexual activity more frequently than "natal" girls are having sex with (and sometimes preying on) other girls in these spaces?