Doubting someone is gay doesn't always stem from thinking being gay is "wrong."
But that doubt can still be really destructive, even if the doubter doesn't mean to be.
A reader of mine wrote in asking for some advice. She has one granddaughter who is gay, and whom the reader felt she always knew was gay. But her younger granddaughter says she is too, and since her preference seemed to develop differently, the grandmother is doubtful.