"Whats right isn't always popular. Whats popular isn't always right" - Albert Einstein 

This quote means that not everything that all the kids do now a days is fun. Just because you dont do it doesn't mean your not a cool kid or anything. Some kids always do it for attention , they do to make themselves look 'cool'. Once you try being like these kids you will get caught , you'll have to deal with many consequences. Always think twice about doing the stuff your about to do. For example you can have friends who smoke & drink , they will try to get you to try it. They wanna make it seem like their a 'cool' person but in reality their not. Smoking or drinking wont make u seem any cooler. Many things can happen to you once your on drugs. Always think twice about doing something you're not suppose to do.