One of the most well-known Dutch child gender professionals no longer treats children.

He said: "In the Netherlands we conduct structural research. But the rest of the world is blindly adopting our research." https://www.ad.nl/nijmegen/dringend-meer-onderzoek-nodig-naar-transgenderzorg-aan-jongeren-waar-komt-de-grote-stroom-kinderen-vandaan~aec79d00/#:~:text=Er%20is%20dringend%20meer%20onderzoek,gezet%20door%20de%20lange%20wachtlijsten

Steensma: "Little research has yet been done on the treatment with puberty inhibitors and hormones in young people. That is why it is also seen as experimental. We are one of the few countries in the world that conducts ongoing research into this."

"In Great Britain, for example, only now, for the first time in all these years, a study of a small group of transgender people has been published. This makes it so difficult, almost all research comes from ourselves."

"We do not know whether studies we have done in the past can still be applied to this time. Many more children are registering, and also a different type."

"Suddenly there are many more girls who apply who feel like a boy. While the ratio was the same in 2013, now three times as many children who were born as girls register, compared to children who were born as boys."

I collected some quotes from Scandinavian gender professionals admitting they have no clue what they're doing (from the Swedish documentary Trans Train). https://twitter.com/MariekeBloos/status/1223964546211229700?s=20

Here those involved admit mistakes:
At 32.55 min Louise Frisén, Head of KID team for gender identity evaluation in child and adolescent psychiatry
At 34.30 Gisela Janis, formerly from RSFL youth
At 35.50 Therese Bäckman, Lecturer in Public Law, University of Gothenburg

At 37.26 + 49.08 Britta Björkholm, Department Head Public Health Agency Sweden
At 51.52 Lena Hallengren, Social Democrat