Canada

The main issue here is that to be an adult, you have to go through puberty.

The problem is that HRT is meant to replace one's expected puberty with the opposite puberty.

So for "best results" you have to start HRT induced/regulated puberty before the expected puberty starts.

Starting HRT after puberty does not reverse the effects of the puberty one has undergone, hence the focus on puberty blockers and starting before puberty.

Starting before puberty starts means starting when they are literally biological kids.

This is where the conflict is. Should literal kids undergo HRT puberty or should they go through their expected puberty, become an adult, and then gain the mental capacity and autonomy to make the decision to undergo HRT but without meeting desired results.

Some say use puberty blockers until 18 and then allow people to make a decision. I disagree, the number of times the Earth goes around the Sun does not turn a child into a consenting adult, puberty does.

The ask is to have consent with the weight of post-puberty but express it while in pre-puberty for a decision on puberty.

I disagree that this is possible. It looks like these MPs disagree as well.