they explained it in the first one... they don't really age visibly after they reach a certain point my only thing is... why are they keeping the same hairstyles for all this time?? because they're cats?
Even with that explained, how are the children getting with their parents friends and having families with them? Unless they're fully grown after a week, it doesn't make much sense
it makes enough sense that I can say at least the author tried... from my understanding, they do seem to grow up faster as well..
There weren't many real explanations so I can only infer it seems like their lifespans might be generally shorter, considering how they have more 'cat-like' health concerns..
I dont understand how the aging works in the universe since the pairings dont make sense. But guess you can draw/write whatever you want in the name of fiction