But that's part of the problem - the kids aren't told this and neither are the parents.
Until the Hannah Barnes story re the Tavistock (detailed in Time to Think) broke, PBs were almost universally being described as reversible and safe.
Based on zero evidence.
It's a fucking scandal.
And the ridiculous false comparison being made by foxy and chums that 'it they're OK for 'cis kids' why shouldn't 'trans kids' use them too is absolute nonsense as eloquently pointed out upthread - because one use is evidence based and licensed for very short term use while the other isn't any of those things.