Vaccines can have devastating permanent side effects. Should parents no longer vaccinate their children?
The answer for both is:
Whichever option does less harm should be taken. A delayed puberty, despite potential long-term risks does less harm than a trans child going through the “wrong” puberty.
Besides, due to the start of puberty having a pretty large range there should in theory be little harm until the age of 14 or so. And at that age children are much more capable of deciding on medical treatments than as preteens.
There is significant proof of benefits:
https://doi.org/10.1111/camh.12437
I can’t vouch for the quality of this literature review (because I don’t want to take an hour or more to read a paper for a Lemmy comment), but usually literature reviews show a fuller picture than individual studies.
Also, this sentence is in the conclusion: