My 10 year old told me she's pansexual

I'm coming to this group because I'm not sure who else to talk to. My 10 year old daughter told me she is pansexual. Of course I love her no matter what her sexual orientation is, but isn't she a little young to know that for sure? I, myself, am bisexual, but married to a man so I never felt she needed to know. I asked how she even knew what pansexual was, she told me she read it online. I don't remember what age I knew I was attracted to women, but my first experience with a woman was when I was 18. I told her I will love her no matter who she is attracted to, but that she's too young to be labeling herself. Please tell me if I'm wrong, or if there's a better way to approach it. I'd love to know if anyone here knew for sure at that young.