I think this is not a good way to expose children at younger ages to question there sexuality or gender. It is like normalizing that you can choose your gender. There are children who feel like they are born in the wrong body, but it is a small percentage and they know that from quite a early age. A small group that wants the majority to think this is normal and if you have  critical thoughts about it you are the trans/homophobe.
I think people can and may feel whatever they feel,but when you push other people to do what you want, because otherwise you are offended that is not a good thing.