Needed? That's the heartbreaking aspect of this, isn't it?
Parents who are unhappy with the sex if their child? Who maybe see their child stepping outside those stereotypes and pushing hard on that? Parents who are living their own dreams through their kids?
Whatever it is it isn't for the benefit of any child that young!
My ex work colleague who has long supported her son in his trans journey (started at about 8 years old) has recently gone very quiet. Having supported her new daughter, middle child, one of three boys, she has just had to be very grateful she didn't get to the front of the queue for any medical intervention. Her son has now decided that it is too much hassle being a girl and he, now 14, wants to play football and maybe have a girlfriend after all.
Who knows how he will choose to live his life, but he probably could have been just as happy if left to be a boy who wore a dress sometimes and had very long hair. But I suspect my colleague really was gaining something from him being trans. Which is ineffably sad.