I have concerns about this as well.  Maybe instead of focussing on gender we should be focussing on helping children be comfortable in their own skin.  If children grow up to feel they're the wrong gender, they can elect to change as adults, but there is something really wrong with children medically transitioning, and I think there may be a huge readjustment in the coming years with all the damage that goes with it.  If children are treated as children, what difference does it make what name they're using that week or what clothes they're wearing?