1. 1. If the kid really doesn’t like something, they are going to do what they want. 2. I don’t think you can judge a parent based on their child. 3. There comes a time in every child’s life where they realize that not listening to their parents doesn’t warrant the end of all things.

2.  Pronouns must agree with their antecedents in person and in number.  I gave the glove to Janet.  I gave it to her.  Pronoun = it; antecedent = glove  Pronoun = her; antecedent = Janet

3.  1. If the kid really doesn’t like something, they are going to do what they want.  The kid = single, therefore the pronoun referring to “the kid” must be single, not plural.  If the kid really doesn’t like something, he is going to do what he wants. OR  If the kid really doesn’t like something, she is going to do what she wants.

4.  I don’t think you can judge a parent based on their child.  I don’t think you can judge a parent based on her child. OR  I don’t think you can judge a parent based on his child.

5.  There comes a time in every child’s life where they realize that not listening to their parents doesn’t warrant the end of all things.  There comes a time in every child’s life where he realizes that not listening to his parents doesn’t warrant the end of all things.  There comes a time in every child’s life where she realizes that not listening to her parents doesn’t warrant the end of all things.

6.  Careful of pronouns. Be sure that the antecedent of the pronoun is clear.  They went over to their house so they could take care of it.  Who are “they”? What is “it”?