There are more important considerations at play than just splitting up possessions when you write a will. Yes, splitting up possessions and assets can also be important. It can be important to allocate assets to a disabled family member for instance, or simply to pass on something that has sentimental value by making a specific bequest.
When a child is involved however, the most important facet of a will is guardianship. What will happen to your child if something happens to you? Who do you want to take care of your child if you cannot? For some people, this may be obvious, for instance grandparents or siblings. Many people have more than one sibling however and more than one set of grandparents. Which one do you think will best suit the needs of your child? Considering this, writing it in a will, and conversing with the would-be guardian is important to do for the future welfare of your child.
Additionally, there are situations where perhaps there is no obvious guardian. Perhaps your family and your spouse’s family are deceased, or you were both only children and your parents are elderly and in a nursing home. This is where you might want to write a friend into the will as a guardian. In situations like the ones considered here, where family is not an option, writing the friend into the will is paramount. The reason behind this is that otherwise, the friend or friends will likely not be considered as guardians at all, whereas if you had family, they would automatically be considered.