You can use one of the many servers that manage the users session for you and only override it if needed. Is there any real problem with a server that uses a c

You can use one of the many servers that manage the users session for you and only override it if needed. Is there any real problem with a server that uses a cookie to only store the users session ID, storing the other data related to the session ID on the server? For most sites I wouldn't think there would be any issues with it.