When I was little my mom always told me that when I had to interrupt a conversation between adults, to first ask permission and then communicate what I wanted when I was given it, because it was rude to interrupt others when they were talking.

It seems that something as simple as a minimum of courtesy and respect for the people around you is being forgotten, I see every day how children get the attention of their parents who are talking to someone else using shouts...

I think it is wonderful that children are taught courtesy and respect, we learn how to relate to others in our first years of life, that is why it is important to start early.