Government doesn't run on the scientific method, sadly.

Yeah that's the problem with legislation like this. You'll have proponents claim it protects children without actually explaining how.

Sometimes we actually need to act before knowing everything. What we know for a fact currently is that the number of children who think they are trans or non-binary is in a sharp rise in many countries in the west. There are guesses why this is: transactivists like to say that LBTQ+ is now accepted so these people dare to come out. The other side cite e.g. social contagion. All this is happening only in the west, somehow. If this is caused by something that is reversible, then that should be probably tried out.

If their transness is completely internal, then nothing external will affect it. If not, they might be "cured" in some sense. Being trans is utilistically negative, after all -- it doesn't make life exactly easier or better. So if its onset can be genuinely prevented, that would be a net positive for the individual.

Dunno if any of this justifies general censorship, probably not, but I think it's complete madness that children are allowed to see everything there is to see in the internet. I think that will be quoted as one of the greatest mistakes of this century. I'm not at all surprised that their mental health is in a sustained nose dive.