Be nice to your parents. When they made the decision to have a child, whether it was planned or not, they were changing their entire lives to do the best they could for this new human being. A lot of young people, we don't understand that.
By the time my children are born, I know it's possible that they can grow up in a world where they don't understand that there were ever any dividers between people and why we have the issues we do today. That's my goal in this life.