What a load of bullshit.
When did pulling a clip out of their hair mean they are really a boy? When did it happen that we decided this meant they aren't a girl? Isn't it gendering to say that only girls like barettes, rather than anyone can wear whatever they like?
I hated wearing hats and headbands as a baby (still do!). Thank goodness my parents just said 'she doesn't like things on her head' rather than 'let's get her to a therapist'.
Fuck me, the world has gone mad.