The more I look at Mario's canon height compared to a standard person (as well as the way I picture it in my version), the more I'm starting to seriously contemplate the headcanon that the bros might have hypochondroplasia. 🤔🩻
Short stature, stocky build, slight macrocephaly, broad hands and feet...
This would be possible as much in a scenario where Mario and Luigi are actually twins as one where they are separate siblings, since there have been reported cases of restricted growth occuring more than once in a single family unit and one of the two individuals usually being notably taller than the other.
This is something that had never crossed my mind before, but I think it would make sense. 👀














