Majority of beekeepers will not have an Epipen... and in reality should not have one unless prescribed, and then in that case will be very aware of the problems relating to a bee sting and their reaction to it... and will have received quite unambiguous instructions on the procedure to adopt if stung.
SWBBO is undergoing desensitation at present and carries a full kit of antihistamines, steroids and two Eppipens.... and all the family including our 10 year old know what to do... even down to a practice Eppipen being supplied.
I have to work alone and most of my apiaries are quite remote and also do not have mobile phone reception, fortunately I am not particularly allergic to bee stings... but I always have a pack of antihistamines with me.
I also sometimes assist a beekeeping friend who is also undergoing desensitation... she also carries the full emergency pack...... and is ALWAYS accompanied!
Tragic accidents do happen.... and life is full of risk.... I have taken a few, motorcycle racing, deep wreck diving, traveling in "war zones".... but I can never see why anyone would want to jump out of a perfectly serviceable aeroplane!
Yeghes da