I can understand the need for a seat rotation with a large group, particularly on a scenic route. Although not in favour of such a policy. I have recently travelled in a group of 23 with another company. Rotation was enforced, but as the tour went on, it was accepted, and the benefit was that everyone got a chance to see some stunning scenery. It does take an amount of goodwill from travellers and TM to make the policy work. Having been on a number of JY tours where there was no enforced seat rotation, I have suffered from some people insisting that they "had"to sit in front with a variety of spurious excuses: not mention those who insist on bringing oversized hand luggage onto the bus so they and their bags can occupy a double seat. With non US groups now regularly exceeding 30, this is a problem JY will need to address in the near future.