In 2017 Johns Hopkins Hospital has reopened its transgender care clinic as the Johns Hopkins Center for Transgender and Gender Expansive Health.

2022 research into Hospital's archives found the decision to cease operation in 1979 was political, not evidence based:

https://pubmed.ncbi.nlm.nih.gov/36191317/

> *70%-80% of children who expressed transgender feelings, overtime, lost those feelings.

This number most likely comes from a study that classified girls as transgender based on behaviors like preference to wear their hair short of wear pants instead of dresses or skirt:

https://pubmed.ncbi.nlm.nih.gov/21216800/

Those children did not self-identify as transgender and further more, research could not contact 41% of them for the follow up:

https://www.huffpost.com/entry/the-end-of-the-desistance_b_8...

I doubt that is the main reason why transgenderism has been promoted so much in recent years. Most of the ones pushing this ideology appear to fit the profile of autogynephilic males who wish to flaunt their paraphilia in public and gain access to the spaces of unconsenting women while doing so.