Should the elderly get a marriage certificate when they remarry and live together?

It is best not to get a license. Living together means helping each other, not being alone. Only when you are not involved in property disputes can you be quiet. If the elderly, especially women, are in trouble, their property will be in a mess, and they will not be able to live a quiet life when they are old. It is also possible to get a certificate. It will be more stable to ask the children of both sides to share the property together and then get the certificate. After all, people die for wealth and birds die for food. This is the law.