Male to Trans are the ones making all the noise, but something like 2/3 of referrals to the Tavistock last year for gender dysphoria came from teenage girls. Porn, social media and social contagion must surely have a lot to do with this.
The segment on Radio 4's Today programme the other day (2.5 hrs in) included an interview with a medical student, now in her late 20s, who identified as male for a while in her early 20s. She took testosterone but fortunately didn't proceed to surgery. She eventually detransitioned and now lives as a woman again. She is left with a permanently deepened voice and facial hair.
There are young women in their teens (mostly in the US and Canada, I think) who are having double mastectomies and proceeding to hysterectomy at a time when it's barely legal for them to vote.
The terrifying thing about all this is that the great majority of young people (of both sexes) who are identifying as trans are on the autistic spectrum and/or have pre-existing mental health problems. But this is brushed aside as soon as they say they are questioning their gender and hormones are the first treatment offered.
Until very recent times, watchful waiting was the approach with children and young teenagers who were suffering from gender dysphoria, combined with talking therapies. 80% of young people treated that way came to terms with their natal sex within quite a short time, with no irreversible consequences from the hormones or surgery.
Also very worryingly, most of them also realised that they are in fact gay. There appears to be a preference in some very conservative religious families (not just Christian) for having a child who is 'born in the wrong body' and getting that resolved with medical treatment rather than comin to terms with having a gay child.
The present approach will instead lead these young gay men and women into sterilising and mutilating themselves.
I do think that many of those who have not thought about this much, or done any digging around to find out what's involved, would be absolutely aghast if they looked at the surgical procedures transgender people are being pushed towards. The cosmetic surgeons in this field (in the US, anyway) appear to have utterly lost sight of all morality and are selling an idea that young men can have a fully functioning vagina constructed from other bits of their anatomy, and the reality is very, very different. It's a wound that never heals, basically.
What on earth has gone wrong with us as a society that we are treating children and teenagers like this?