To those not in the know, binders can seem a tolerable way to help a dysphoric young woman cope with overwhelming and difficult feelings.
Many believe that binders are a form of 'treatment' to help crippling feelings that can't be addressed any other way.
My own daughter started binding without telling me. I found out. She minimised it, telling me scornfully that they were not a problem at all as long as you wore the correct size. Nothing to see here, move along.
I tried not to worry too much about the binder, as there was so much more to deal with - her insatiable need to start testosterone and the fact that she was slipping further away from us every single day.
However, binding acted as a gateway. Doing it 'confirmed' and signalled her trans status; it confirmed her 'hatred' of her breasts; it bound her thinking; it increased her dysphoria because it alienated her from her female form and made her feel that her body had to be fixed permanently to avoid the pain and difficulty of binding; having to bind was a constant physical reminder that there was something 'wrong' with her.
There is only one direction of travel when a young woman starts to bind her breasts. And the fact that society is sleepwalking into affirming double mastectomies as the remedy is truly appalling.
When girls are in this state of mental distress and anguish, they will do anything to convince themselves and society that they really are boys trapped in a female body. That the only way to help them is to affirm and collude. Or else.
Their desire to have autonomy over their body becomes so urgent and all consuming that they will lie and do almost anything to achieve their ends. I know this to be true.
This is a mental health crisis, increasingly affecting our young women. We have to stop this juggernaut before it gains any more traction.
What we can do about it is the question that haunts me every single day.
I want parents and doctors and therapists and teachers to see what's really going on. I want them to open their eyes and actually think properly about what's happening.
When it comes to issues of health and welfare and safety, we simply have to stop being afraid of accusations of 'transphobia' and stop prioritising self-diagnosis.
We have to provide proper help and counselling and support that isn't in thrall to an ideology.
Do we value our young women enough to do this?