If you want very young children to be 100 % shielded from every possible vulgarity then you will most likely get an unbalanced innocent idiot teen unable to cope with any peer issues.Is it not a lesson for her carers, then? I have to say that I don't find it amusing.
The child heard the vulgarity somwhere and is smart enough to understand when repeated it gets a strong reaction from adults.No, I'm a good humoured chap as you well know. That child gave me the creeps. It's wrong to put someone this young up on Youtube swearing. Just you watch, she will want to have her own show next.