Something I find really tedious is how many people fail to appreciate the role that parents' sense of ownership over their children plays in transphobia. Or they'll think of it as only applying to "trans children" in a way that privileges the parents' perceptions of whether their child is "trans" or not.
It's frustrating because liberal parents' belief in the validity of trans people will often be overshadowed by their belief that they are the experts in their children's minds and interior landscapes. "Trans people are who they say they are, but my child is not trans".
