They’ve also been used for social reasons. Delaying puberty in cis kids isn’t always a matter of the body not being ready for it yet. Sometimes it’s just because a child would be socially harmed by starting puberty at say eight or nine years old.

Doctors quite sensibly take those social reasons into account when they prescribe puberty blockers. They’re considering the whole health of the child, which is what we want them to do.

We should equally want them to consider the whole health of the child when they prescribe puberty blockers for trans kids.

My foster son had an extremely delayed puberty, basically because his body lacked sufficient quantities of the hormones puberty blockers block.

When he was 16 he looked 11. You know what? When his hormones finally kicked in, everything worked out. He shot up in height, and now he’s (much) taller than I am. The delay in his puberty did not harm him physically, just like delayed puberty doesn’t harm trans kids.