A will has no legal authority until after death. So, a will does not help manage a person’s affairs when they are incapacitated, whether by illness or injury. A will does not help an estate avoid probate. A will is the legal document submitted to the probate court, so it is basically an “admission ticket” to probate. A will is a good place to nominate the guardians  of your minor children if they are orphaned. All parents of minor children should document their choice of guardians. If you leave this to chance, you could be setting up a family battle royal, and your children could end up with the wrong guardians.