I apologize, I wasn't looking for debate or clarification on this issue, I was merely sharing my experience and thoughts about my situation. There are a lot of people who use these boards in travel planning and many of them are larger size and have asked in the past about Southwest's policy. This was the first time I've encountered use of the policy so I was merely trying to point out that it is in place, is being used, and even if no one has ever asked before, they may now. For a lot of people being asked to buy that second seat at departure is an expense that they can't afford. A little awareness and planning up front could save them a lot of grief.
I am all for air safety and in that respect understand why any airline has such a policy. What I wonder, was air travel then unsafe prior to implementing this policy? Planes have been in operation for many, many years and to my knowledge have not had a safety situation because of a passenger's size arise. If anyone knows of this, I'd love to hear about it. As for comfort, I'm all for having a comfortable flight and especially on an airline that doesn't pre-assign seats, I do understand that I many always have my children next to me to help accomodate my size. However, if comfort is a consideration to all passengers, then why isn't comfort taken into account in every way. For example, my husband, who is very "normal" size was seated across the aisle from us. The two seats next to him were taken up by also average adult size people. They were not jammed into the 3 seats but no one had extra room either. On top of that, as soon as the plane took off, the passenger in front of him reclined all the way back the entire flight. So if an airline is going to stand by comfort as a reason to implement a rule, they need to correct any and all situations that could create discomfort.
Alas, the person who says this is not about money is clearly living in a world different than mine. Bottom line, the airline wants to make money. Yes, they will refund your ticket if the flight is not full. However, in stating that I would bet they are banking on most flights being full or overbooked and passengers due a refund not actually following through with getting it in the end. Somewhere there are some SWA execs who have a careful formula in place based on complaints, safety issues, flight bookings, etc., and they have identified two things -- more and more of the American public falls into the obese category, and they can get people to pay for an extra seat by enforcing their policy. Being a cheap airline, they are still going to draw the greatest number of passengers so they ultimately have little to lose by charging for a second seat and monetarily anyway, something to gain.
Again, not trying to stir the pot, just sharing my experience and thoughts.