I guess you must know more than the American Academy of Pediatrics, then, because they disagree with you. Here's a link to the
AAP clinical report on use of epi. Some quotes from them:
"Consequently, physicians should always instruct these individuals to err on the side of injecting epinephrine rather than waiting too long."
"In contrast to transient pallor, tremor, anxiety, and palpitations, which are common and anticipated pharmacologic effects of epinephrine, serious adverse effects are generally not a concern for otherwise healthy children"
"Prompt administration of epinephrine for anaphylaxis is key. Sampson et al described 6 children with fatal reactions to food, all of whom had asthma, previous reactions to foods, and delay in treatment with epinephrine. "
Epi is only considered a problem for healthy children when "when epinephrine was given in overdose, especially when it was administered intravenously in an overdose, given at an inappropriately high concentration, or infused too rapidly." None of which apply in the case of epipens prescribed following the manufacturers instruction.
Delays in using epinephrine is believed to have resulted in deaths (see the Sampson reference), and other "adverse effects are generally not a concern". Fear of using epi is sited as a problem both by the AAP and the AAAAI (see
AAAAI position paper).
Should it be used without good reason? Obviously not, but both the AAP and AAAAI suggest that children with a medical need be allowed to carry it on their person.