It's easy to edit the Christmas list. That's why, in the beginning, you need to make an outline of the Christmas list. It can be based on the context of the list. For example, if it's a list for Christmas gifts, then you will write stuff that is different from the list for grocery shopping. It goes the same with the list for your kids. For children, it's rather simple because they just need to check, for example, things they have to accomplish during Christmas or before Christmas and so on.
Everybody can edit the Christmas list. Kids will edit their the lists based on their wishes and the name of their friends. The teens and young-adult will edit it for sale and for themselves when checking the gift list and other matters with the Christmas list. Adults edit it for their children, also for themselves because they want to save some money, so they need to reduce the number of people and check the price of the gift. Therefore, people of all ages can edit those lists based on their needs and other circumstance.
Of course! You can get an editable Christmas list online. Many of the contributors give it for free where you can write the checkboxes based on what you need. If you make a Christmas list by yourself, you can always edit it with other decorations and contents. Not all lists have to be with checkboxes. You can also write numbers and put bullets, write down their names, things they would like, the price, and the payment methods. Especially for children, they like to have more pictures on their Christmas list. And so, you can insert some Santa or snowman clipart.
You can edit the Christmas list everywhere. Most people edit the lists at home because the computer is at home. You can edit it at school, actually. Maybe, you edit the list because you want to examine the people you care about for Christmas gift or the list for a Christmas party attendee. Mothers edit the Christmas list in the kitchen when they have found out what to cook on Christmas. And sometimes, they edit the list all of a sudden in the supermarket because they miss the content or they put too many unnecessary things on the list.