The world keeps changing, growing, altering. Things that were appropriate yesterday may not be appropriate today, and many are left with big questions about how they should act. Well, today I start a new column that aims to sort all of that out for you — Good Media Manners. Is it okay for kids to wear headphones in the car? Are iPads acceptable at a restaurant? Just how old should a child be before going to see an R-rated movie? Good Media Manners is here to offer up advice on all those questions and so much more. Have a question you need answered? Email me at good.media.manners@gmail.com