Tall passengers feel discriminated against by the airlines. Tall business passengers tell me that after flying economy, they are not able to perform well at meetings. Tall passengers say they request aisle seats. Unfortunately, tall passengers cannot fully relax when stretching a leg into the aisle, out of concern that they will trip up a flight attendant or another passenger, or have their toes run over by a service cart.
Exit rows are another precious option.
Tall passengers wish the airlines would save the exit rows for them because on many aircraft, there is more leg room at exit rows. Heroics are not a requirement. Tall passengers unite. I welcome any anecdotes about lack of space on commercial flights. I am interested in what suggestions you have for airline designers.