It still makes me curious on how motion sickness develops in a dragon slayer. Like, are there any requirements or does it just sorta happen? I would assume it would happen at a certain age bc Natsu and Wendy got it when they where younger while Gajeel got it when he was closer to an adult.

i wouldnt think abt it too much, but ofc ur free to theorize. i think its just mashimas being silly and deciding retroactively to give all dragon slayers motion sickness.