See, e.g., In re Antar R.W., No. W2011-01244-COA-R3-JV, 2012 WL 3055989, at *3 (Tenn. Ct. App., filed July 27, 2012) (stating, "[s]on has already reached the age of eighteen, so the proceedings as to custody are now moot."); Moore v. Moore, No. 01A01-9103-CH-00113, 1991 WL 220582, at *2 (Tenn. Ct. App., filed Nov. 1, 1991) ("as to the oldest child, now in excess of 18 years of age, the [custody] question is moot"); Briley v. Briley, 1988 WL 31774, at *3 (Tenn. Ct. App., filed Apr. 4, 1988); Robinson v. Irons, No. E2010-00249-COA-R3-CV, 2010 WL 3928625, at *6 n.4 (Tenn. Ct. App., filed Oct. 7, 2010). Although there can be circumstances under which it is appropriate for an appellate court to decline to apply the mootness doctrine, see Norma Faye Pyles Lynch Family Purpose LLC v. Putnam Cnty., 301 S.W.3d 196, 204 (Tenn.