This is entirely up to you. Remember, gray is just another shade of hair color, not a marker of advanced age. Some people start graying as early as age 5. Others are fully gray in their 20s. Some people never go naturally gray. There are many advantages to going gray, including healthier hair, fewer toxic chemicals being dumped on your head and in the environment, and more time and money to do the things you enjoy. If you are afraid that you will look older with gray hair, check over this list of tips on How Not to Look Old with Gray Hair and also get some inspiration by looking at these before and after photos of women who went gray.