This is because people in this site are basically reactionary to libertarians (which I get it, see user name). Age of consent and other associated laws should exist and be enforced because of the potential for wild power dynamic imbalances and abuse.
However, there is absolutely no material basis for the idea that 'maturity' and 'adulthood' is specifically tied to any age past 13-14 when the physical maturation process kicks in. I have known incredibly 'immature' 40 year olds (who can't be trusted with simple tasks) who are clearly in some form of arrested development and very 'mature' (in that they very seriously think and plan for the future based on the information available to them, to a almost comical degrees) 13 year olds. However, it is clear to me that much of that 'maturity' comes from their ability to parrot the arguments of their parents, teachers, and role-models, not their actual understanding of situations. Which is fine, they are kids, I don't have that expectation. My point is that tying these nebulous cultural concepts to a specific age, or even 'brain development', which is itself a very poorly understood field, is ridiculous.
My second point is that because of this healthcare of any kind should not be barred by these concepts either, and certainly not by age. Erecting artificial barriers to professional care will only lead to people seeking amateur care which has the potential to create more danger for individuals seeking treatment.
That said, if you are part of a trans activist group, now would be good time to begin attempting to coordinate with groups in PR, supplying individuals with the latest scientific medical advice and material. What cannot be won in the courts and legislature must therefore be won on the streets.
I will go out on a limb here as someone who has been diagnosed with 'unclassified impulse control issues' (I didn't really know how to keep my mouth shut and emotions in check), but is now just considered 'abnormal but we trust you to medicate yourself properly' which is a weird place to be in, while there may be an element of ableism in there, a large part of it comes from the fact that these people are on the very low end of the spectrum of their anxiety disorders and yet have found a way through self-medication to trigger and intensify it in themselves.
If they were higher on the spectrum with it, it likely would have triggered earlier, and they would be more self-conscious from having to deal with it when they were younger. This is, of course, assuming they had access to mental health care at all. The fact of the matter is that they are absolutely correct to be paranoid. We are being passively observed, usually illegally, and our data is then used to feed us content and products all the time, tapping into our greatest insecurities and FOMO to do so. Most anxiety-ridden people I know are anxiety-ridden because they have full understanding of this at all times and it absolutely paralyzes them, with the most common one I have personally witnessed being someone having a literal mental breakdown over choice and calorie anxiety from a fast food menu. Which they are correct to be anxious over because too much of that stuff is definitely bad for you. For myself, massive anxiety hits whenever I enter a big city, because it suddenly dawns on me that there are hundreds of thousands, of not millions of people living there, most of whom will never be aware of me nor I of them.
In this way, this kind of LLM induced anxiety is both stupid in its creation and ableist in not having sympathy despite the stupidity of it. TLDR: It can be both.