On average, the human brain doesn’t develop full rational thought until the age of 25. Taking this into consideration, we should propose a ban on gender affirming care prior to the age of 25. Specifically when it comes to non reversible hormone treatments and surgeries. As Americans we reserve the right to get tattoos, piercings and plastic surgery. These are all things that alter our appearance but none of these are legal until atleast the age of 18 without parents consent. Even then, some parents may provide consent to certain treatments given the choice without fully understanding the long term health effects both physically and mentally.
Breast implants and facial reconstruction are both a choice anyone should be able to make as a legal adult. However, the choice to permanently mutilate the defining features of a persons biological sex should be held until the age of 25 when the frontal cortex is fully developed. Same for hormone treatments which can lead to sterilization and permanent physiological changes that are nearly impossible to reverse.
Again, we are Americans and for those that wish to make that choice, they should be able to do so within reason as defined above. Prior to their full transition should they so chose, they will follow the social norms associated with their biological sex. Male use male facilities, Females use female facilities.
And for go measure, this would be an excellent policy to also ban biological males from women’s sports.