I think it's "adults" who grew up with social media needing to be the center of attention. What better way to be so, than by being trendy and messing up your kid for life?
It's more like Munchausen by proxy.
I think transgenderism is caused by feminists whose primary aim is to shame men for power. These boys are taught to be ashamed of their sex and want to be rid of the stigma. Of course, it’s backfiring in feminists who think they can do anything as well or better than men. In sports this is backfiring where you see transgender MMA fighters sending women to the emergency room with skull fractures or beating them routinely at track. Feminists’ egalitarian chickens have come home to roost.