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

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.