Let's say that one day you died for any reason and no one in the family understands these things or you do not have family.
What kind of plan do you have ?
For most people if they would die all the accounts is gone since all the informations are lost. There are a very few persons who save their accounts and informations into a safe place where family could find it in case they die but since no one expects to die suddenly I don't think anyone worries to much about their accounts.