I'll try again. It is up to them to have certain cases tried in their courts, like some people opt to have their cases tried by Judge Judy. They are not required to go to Judge Judy, but they get money for appearing there, and that frees up other small claims courts, saving taxpayers money. There are judges who do divorce settlements on TV, and that type of case is an area of civil law that is open to that type of arbitration as well. Certain civil cases are much too complicated for such a venue, so they may NOT be open for such an option.
If a lawyer is needed or even allowed (not so in small claims court,) the cases are too complex, and not open to this type of arbitration. If you and some other person have a case where all litigants agree to whatever Uncle Joe decides (or whatever Preacher Bob, Rabbi Avi, or other person decides) it may be open to these different options.
Areas where the state is represented, and lawyers are allowed, do not pose a good case for this avenue of justice, because the constitutional law of the state or nation may be circumvented. It should not be allowed! We do not need to arbitrarily turn over the execution of our constitutional republic to these foreign laws, most especially when we established to get away from that type of system.