No, I think we have more than enough lifestages and tbh, I even think that infants are too much. All the childhood stages combined are longer than ya and adult stages combined, which basically meanы that we have to play for kids who can't do anything for the majority of a sim's life. Although I love playing with families, I'm pissed that my elders die before most of their kids grow up/get married/have their own kids etc. We're basically back to ts2, where your sims had to start having babies right away if you wanted them to live up to their grandkids.