I am an experienced instructor, I have found it difficult to instructs of various age groups and experiences. Some of my students are right out of High School and then you have the 40 year olds. When communicating with them and setting the class rules. I have found my younger students to be more defiant. They do not expect to be held accountable. Also I have students who are already working in the healthcare field but are continuing their education for promotions. with these students, they challenge you on a regular basis and at times gets a little frustrating. What is the best way to work with these different groups?