What is the main purpose of joining parties in a lawsuit?

The main purpose of joining parties in a lawsuit is to ensure that all relevant parties are included in the resolution of disputes. This principle underlies the rules of joinder, as they are designed to promote comprehensive adjudication of claims that arise from the same transaction or occurrence. By including all necessary parties, the court can issue a complete and fair resolution, preventing the possibility of inconsistent outcomes and repetitive litigation. This approach aligns with judicial efficiency, as it addresses all aspects of a case in one proceeding.

Other options do not capture the primary aim of joinder. For instance, confusing the opposing party does not embody the spirit of judicial processes and would not be a legitimate or ethical reason for joining parties. Reducing judges' workload might be a secondary effect of effective joinder, but it's not the primary legal justification for it. Creating an opportunity for more claims could potentially lead to complications and is not a supported purpose of joinder, which seeks to streamline processes and ensure fairness rather than multiplying claims unnecessarily.