I remember. I was one.
My mom and dad tell a very colorful story of me throwing a dress on the floor after my grandmother practically forced it on me. I was 4. I had no idea what a gender was. Or sex. Or a sexual orientation. I just knew I didn't like dresses. I liked football. And playing in the mud. And working on cars with my dad. (I use the term "working" loosely)
Now? I'd be labeled a boy trapped in a girl body. I'd be recommended puberty blockers, hormones (DRUGS — call them what they are), and maybe even Gender Reassignment Surgery. That's horrifying to think of as an adult.