Real life does not fit a simple guest box
Real life can involve family visiting, an adult child helping a parent, a caregiver, a friend staying temporarily, someone helping with maintenance, a guest receiving mail, a longer authorized stay, an authorization that later changes, or an overstay question after an authorization window ends.
Remembering that you told someone they could stay temporarily is not the same as a contemporaneously recorded authorization history. DocuStay preserves the authorization record and timeline so those facts do not have to depend on memory alone.