Well, I wanted to try and play a niche game with the full life span of 100 days on every age stage.
The starting age maximum was 100 days, I accepted this for the niches starting as babies for a day. What is not happening for them is aging up. I allowed the game to correct itself by letting 2 more niche days to pass.
Their still babies, I'm disappointed for my Nicheling can't crack her shell or fly. I understand and would like to have the full life span potential that's suggested to be added, thank you.