figrole
Another is to consider that while over 96% of children given puberty blockers proceed to cross-sex hormones, those treated with watchful waiting desist in around 85% of cases.
This suggests that puberty blockers are much more likely to cement gender dysphoria, rather than treat it.
Furthermore, there is no evidence to show that not being prescribed puberty blockers causes gender dysphoric children to kill themselves.
There's no good reason why these children can't experience their normal, untarnished puberty, and defer the decision to medically trans themselves to later on, in adulthood, when they are older and wiser.
So there's no reason for trans-identifying teenagers to have their own puberties blocked, before they can even make properly informed decisions about choosing lifelong sterility and lack of sexual function.
Like the older trans, they can wait a few years to adulthood or even later, and then decide what they want to do. This is the safer and more sensible option, and the one most compatible with "do no harm".