Santa letter for older kids. Discover Pinterest's best ideas and inspiration for Santa letter for older kids.Start your letter with a personalized greeting from Santa himself. Write "Dear" and your child's name. "I'm just a little curious. Am I on the nice or 'notty' list? Get a personalized letter from Santa for your child! This letter can help reassure them, or at least keep them from telling their siblings. Free to download and print. My kids are older and they have a bombardment of friends who "know," and are eager to tell them the truth about Santa.