Hormone blockers are generally used because it’s far easier for people to transition if they haven’t already been smacked around by puberty and it ends up giving a healthier result.
“Studies have found that transgender youth who take puberty blockers are significantly less likely to experience lifelong suicidal ideation than those who want the care and don’t get it. And studies show psychological trauma is reduced and life satisfaction increases when people who want transition-related hormone therapy get it.
Major medical associations support transition-related care. They include the American Academy of Pediatrics, the American Medical Association, the Endocrine Society, the World Medical Association and the World Professional Association for Transgender Health.”