I vote for smaller people. I am 6'3" and 13 stone. I fit in the WC just fine, and have an inch or two to spare in the chair. Money would be spent by the airlines on better things, such has hiring CSRs with manors. At the same time, why not weigh passingers, I am tired of people on both sides of me overflowing into my seats. Perhaps one should concentrate on the important things about travel. How much time do you spend in the WC anyway?