I just think there's a few issues that need to be considered..
Firstly we cannot compare the medical process of transitioning across countries and continents due to HUGELY differing medical approaches.
For example ethical consideration is hugely different in America and the UK, as America is pharmaceutical and profit lead, whereas it's a huge ethical boundary in the UK to be influenced by profiteering and pharmaceutical companies and theres much more red tape. As for Australia I'm not sure, but from the limited discussion with family living their it seems to be very in the middle ground.
Therefore we cannot assume what is considered acceptable medical practice in one country would be how it would occur in another country.
Also theres always a lot of talk about detranisitioning and about how trans in culturally and socially influenced and gender dysphoria therefore does not 'exist?'.
But no consideration of those who have waited until adulthood to transition, as such having very difficult and traumatic childhoods, and are very very happy now having undergone a full transition. I actually happen to know a few adults who have done so and continue to be happy with their decisions.
It can only be a valid argument if all sides are considered and not just the one that pushes your personal narrative.
Likewise I find the assertion from some people that those who chose to transition or even those who may present as the opposite gender (gender fluid etc) may not and will not be acknowledged as their identifying gender. This attitude does boarder on transphobia rather then concern and safeguarding. If we dont want children to make the permanent decision to medically change their bodies in potentially harmful ways they will regret, by refusing to acknowledge their gender change WITHOUT them having made a permanent change, ultimately forces young people into medical procedures and medication just to have their current desires acknowledged.
If people acknowledged and accepted that Sally now wanted to be called sam and be a boy, then Sam would feel a lot less pressure to make permanent changes to prove they where serious about it, and as such if as they matured into adulthood and made peace with their mental health and disconnection, they would find it much easier to revert back to Sally. I worry that such dismissive attitudes force youths to push for more serious medical procedures to prove they are serious (at that moment) about changing due to this flippant attitude to accepting their beliefs.
It's similar to how people go through bicurious stages where they explore same sex relationships to decide if it's for them, if children didnt feel need to prove they where serious by using medical procedures, they may in a few years decide actually being a boy/girl isnt for them, in their own time.
And dont get me wrong I think that gender clinics and services for youths and adults have a LONG way to go before being suitable and appropriate for their purpose. But we need to consider the impact that society has through its attitudes into forcing and pushing children in one way or another.