On part's at the RC's they only want young fit people on stage, for any live demo's or experiences!
A couple of years back, my mother in law was ask to tell her life's story. When it came time to go over it with the CO and DO, The DO informed the brother that was to interview her, that he needed someone younger and in better shape!!
It crushed mom in law!! But it never even intered her mind to question the BORG!!!