I'm not sure how I feel about this. At first glance, this seems really ridiculous, but it's actually a pretty complex matter, starting with what gender identity is and when and how it's formed. I feel like I'm currently not informed enough to have a strong opinion about this.
As far as I know, it's not a choice usually. It's about identity that just comes to be as a person matures.
I disagree with that. A person can have gender dysphoria without being trans or ultimately transitioning to a different gender. It's definitely a choice if a person wants to live as a different gender or not. They don't have to either way. In regards to kids, they're highly suspectable to whatever their parents, friends and society tells them and they can be pushed towards something when the kid has no understanding of it.