Infants! Share Your Gameplay and Discoveries (New Thread In General Discussion)

I suppose it could be a glitch, and if so I hope it is never fixed but has anyone been playing rotational and noticed when they get back to infants they hadn't played with they seem to have a boost in learning skills? Almost like the sims were taking care of them while you weren't around? Cause I left one of my couples alone and their baby is way behind in age one of my new toddlers but she is just snagging milestones.