No offense, but what an odd question. Have you seriously never seen a chef on TV use fresh herbs? Have you never read a recipe that gives you the option to use fresh or dried herbs? Have you never browsed Amazon and seen a fresh herb keeper to keep your fresh herbs from spoiling until you can use them in dishes?
I'm not trying to be rude ,I just wonder how anyone can make it to adulthood without seeing at least one reference to using fresh herbs, whether in a magazine or on the cooking channel. Sometimes the dishes that you eat in restaurants are garnished with fresh herbs on the plate.
Not only is using fresh herbs well-known and normal, it is considered the ideal way to use herbs. Buying dried herbs is the second best route to go when you just can't get them fresh.