One would think that with a title like "51% of children who go through gender transition attempt suicide" you would have cited some kind of a study.
What is your source for that statistic?
The reason some transgender people attempt suicide is because of the treatment they receive from people like the asshole who humiliated the pharmacist in the article you posted.
Gender-based victimization, discrimination, bullying, violence, being rejected by the family, friends, and community; harassment by intimate partner, family members, police and public; discrimination and ill treatment at health-care system are
the major risk factors that influence the suicidal behavior among transgender persons.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5178031/