Cussin!

[Slartibartfast]

Wolf is very right, the problem with children and cursing is that they don't understand when cursing is and is not appropriate.

If they learn English wrong to begin with, then it is going to be difficult to make them change their habits later. I've seen kids that can't conjugate the verb 'to be' properly because they have never heard anyone around them say it right. So they be saying shit wrong grammatically. The ultimate result is that even if the kid is smart, he sound uneducated. Fast forward to when they are trying to get a job. If they still haven't learned to speak and write properly, they are limiting their potential big time, no matter how talented they are otherwise.

Children should learn from day one to be able to speak correct english. When they get that under control then they should learn when the rules can be loosened and broken.