My first tooth POP @ 13 months and 3 days

GrandAunty Julie discover my first tooth today! My lower front right tooth is finally out. Ah ma is so excited about my tooth, she touch it with her finger. It nearly cut her as I have sharp teeth. Mummy and Daddy is also very excited about this little tooth and they also put their fingers into my mouth to feel it. Everyone has a full set of teeths of their own and why are they so excited with mine?? I guess adults just behave strangely, don't they??