[UGAalum94]

It sounds like the OP's co-worker is just kind of vulgar and is raising kids to be the same way where the OP knows that she wants children who are well mannered and well behaved.

I'm afraid some people are tedious and enforce rules more about corrections and "proper" behavior as a way of looking down on people.

In spite of the church lady-type manners police, for most people good manners are a way of making sure you treat other people well and are about offering direction for situations in which being unsure could lead to bad feelings or uncertainty about how to act.

In the OP's case, her children will have the comfort and confidence of knowing how to interact with people and will know not to offend other people. The OP's co-worker's kids will unfortunately learn that they aren't so lucky. A good segment of society doesn't want to be around people belching and farting and announcing their belches and farts. I don't think it's limited to the South.