A well-drafted Will anticipates different scenarios and plans for these (for example, what happens if an adult child or grandchild dies before you). You should, in any event, still think about changing your Will whenever your financial or personal circumstances change, or if there is a change in the beneficiaries. For example, if you made a Will when your children were younger and you named your parents as guardian and executor, when your children become adults, you may no longer need the guardian clause and you might want your children or a sibling to be executor instead. It is a good practice to review your Will every three to five years to ensure that it still reflects your current wishes.