As for Cassie, Michelle took us aside and told us what we should have seen for ourselves. At five years old our third child was deeply unhappy because while we treated her like a boy; she considered herself a girl. When she visited Michelle and Erin she changed into dresses and was much happier. Michelle showed us the photos and it was night and day.

That led to a lot of long talks, tears and some heartbreak. Babs and Steph struggled a bit at first that's their little brother was now their little sister. But they accepted who she was and we began the process. We were lucky that people...