For reference, something like 14% of patients regret medical procedures on average. The risk of a person discovering that they aren't actually trans after receiving HRT and/or surgeries is unfathomably low. Just in case anyone you know ever tries to say it should be banned because of the potential for someone to detransition, you can let them know that every other medical procedure should be banned too.
Edit: the rate of regret for cosmetic surgeries in general is about 65%! Why do people support cis gender affirming care while opposing trans care? It certainly isn't out of concern for the patients.