First of all, it is very important to unlock the child 12 years old. Parents need to prepare a lot of things before the child unlocks. In general, they need to prepare some cakes, fruits and rice to worship their ancestors before they can unlock the lock. When unlocking, they will also invite some relatives and friends to watch. Secondly, parents need to prepare things for their children to unlock, such as a red belt, several red wool ropes, 14 copper coins with holes, a copper lock, 12 doughnuts with holes or 12 steamed stuffed buns with holes, a broom, a dustpan, a lighter or a box of matches, and most importantly, peaches.
Therefore, when a child reaches the age of 12, there are still many things to be prepared. If parents don't understand, you can try to ask the older generation, because they are more experienced and avoid mistakes when children unlock.