what, how is this fair? housing lease agreements have initials on each section and page for this reason, so on big long contracts you can't change a small part.

what, how is this fair? housing lease agreements have initials on each section and page for this reason, so on big long contracts you can't change a small part. if you lose a copy of a contract, and the other party has a copy that is signed and dated by you (in all locations required), isn't that case closed?