I was wondering why on earth GIDs / Tavistock weren't seen as the experts, but then it occurred to me that the whole trans ideology, especially regarding children, is opinion dressed up as scientific fact.
This woman's opinion, due to the fact she also worked with intersex patients, and with endocrinologists was taken as expert fact.
She undoubtedly believes it herself as scientific fact.
There is no other condition where physically healthy children are put on a path to be given drugs that will damage their long term health and physical development. Especially where it's fully possible to 'treat' with no drugs at all.
I also note that Lancashire County Council is the first LA, according to the piece by Debbie Hayton in the TES this week to in 2014 change its advice regarding toilet use by "trans children and young people." Same year as the Trans Inclusion Schools Toolkit by Allsorts and Brighton/ Hove CC.
According to the article , Cornwall Council, the Intercom Trust (?) and Devon and Cornwall Police developed the well respected Cornwall Guidance in 2012. This was very cautious around the obvious safeguarding issues for sex based rights of girls and was promoted by the DFE and GIDS.
I find the Lancashire bit pertinent to this.
(If you can buy the TES this week, published 10/5/19 to read the article please do it's very good but paywalled.)