Not for the first time, Emma Watson was stopped at customs at JFK during the Christmas holidays and was asked where her parents or guardian were because she looked too young to be traveling alone. In a series of Tweets, Emma said that this is not the first time this has happened and it took a few minutes before customs believed she was 22 and not 12. Showing the passport probably helps. Bringing out a copy of Harry Potter on DVD, probably not as much. She said it was because she had her hair up and was wearing a backpack. I think it is because unless she is doing some kind of photoshoot like the one above, that people could really assume she is much younger than she is. This is why she is having such a tough time finding parts that get her away from Harry Potter.