You've fallen into the very common trap of taking what someone else says (it's not my child's natural state) and then putting the worst interpretation on it (it's fine for his kid to keep screaming and running around in public)
You can see there's a wide range of behaviour starting at fidgety before you get to running around and screaming.
You can see there's a wide range of behaviour starting at fidgety before you get to running around and screaming.