30 Things That Grandparents Should Never Do Grandparents are some of the most important figures in any child's life, and **body wants to set a bad example! To ensure your grandkids the happiest family environment imaginable, there are a few steps to take as a grandma or grandpa. From inciting sugar-fueled chaos to behaving manipulatively toward family members, here are 30 Things That Grandparents Should Never do.