>>58801834I'm like 90% sure they had some reason other than "too confusing for kids" and that's just the boilerplate excuse they use if it ever comes up
It would not have been any more confusing than any of the other mystery gifts that triggered an in-game event in gen 4 (Oak's Letter, Member Card, Regigigas, Rotom's room, Deoxys's meteorites, the Ilux Shrine events, Sinjoh Ruins...). Pretty much all of them at the bare minimum mentioned in the mystery gift's description what you had to do and/or that you could go online to learn more
I also think the gen 5 events triggered by transferring the mystery gift legendary beasts and Celebi from gen 4 would be way more confusing to a kid
