First and foremost it will be a great way to spend some quality time with your son or daughter. (Yes boys can work with yarn too!)
Many of these mats on the market are coated with heat and water resistant material, allowing for steam, wet blocking and pressing. Many mats on the market can simple be rolled up when the user has finished working on their project for the time being and then be stored away safely and securely.
Another very practical item to invest is a chart keeper, which is tool that can be used to keep and display patterns and charts, all whilst working on a particular project. The chart keeper can be opened out and stood up to place patterns in for easy reference when working on a project, and then folded up and stored away when not in use.
Color Outside the Lines: I remember coloring books, and how careful I was to never get the crayon color outside the area I was coloring in or it would be ruined. Not so with knitting. Especially with scarf knitting. Because of all of the yarn choices we have, putting together beautifully color-crafted scarves is so easy. And so fun.
Other smaller accessories that can be particularly useful when working on a knitting project are stitch markers, which can be used to mark particular points in a pattern that you are working on. These often come in the form of small rings which can simply be slipped onto your knitting needles as you knit.