Is it? Transmedicalists (those who belive sex reassignment is a required goal) are a minority in trans communities and "truscum" was created as a derogatory term for this attitude indicating its unpopularity.
If you mean puberty blockers for trans youth rather than sex reassignment, they have much more support because of their non-permanent nature. We let many teenagers make decisions about things like tattoos and piercings too
There's still a significant ave gap between these two populations, though. Tattoos and piercings can be obtained by 16-18yos without parental consent, but to be effective, puberty blockers need to start near or before the beginning of puberty, when children are usually 10-14 years old.
We may not be talking about many years by raw count, but as a percentage of the total lifespan of those involved, the first group is ~50% older than the second.
I find it very concerning that anyone would attempt to present puberty blockers as "non-permanent". Extraordinary claims like that require extraordinary evidence.
The use of puberty blockers to delay the normal onset of puberty is experimental and there is plenty of evidence that it has irreversible and serious, often tragic, effects:
If you mean puberty blockers for trans youth rather than sex reassignment, they have much more support because of their non-permanent nature. We let many teenagers make decisions about things like tattoos and piercings too