Children should know their place, when it come to talking back.  Having respect for others is  something they should not lack.
They should be taught at an early age, to stay out of adults conversations.  It may be friends, family members, or other relations.
When teenagers talk back, it really make them look bad.  It's important not to walk around, causing people to be sad.
You suppose to be an example, for those who are younger than you.  Be a good role model, in all that you choose to do.
By, Sandra J. Nailing