Originally Posted by dgparent

Well it is simple, because to get those seats free you need to show a disability and need for the seat, not just sit there on a whim. VERY rarely does anyone get moved from their seat for a disabled person.

Also the point he/she was making I think is that even though you can ask to pre-board you still have to sit in row 33 middle seat if that is what your ticket says not row 1 aisle. You can't scam a better seat by claiming to need extra time, there is no seat saving either.