>>46514579Or this.
>>46514626Depending on how you choose to interpret it, the mother indicates the player character either improves or does not depreciate with age. (Ignoring that the faces look exactly same.)
>>46516833I don't THINK she was in the Game Boy manual? Short of Game Freak's website at the time, the only place you would have seen that art would have been players guides (can confirm the latter).