User blog comment:Lost Labyrinth/The Sims Wiki News - 26th June 2014/@comment-4061209-20140629054128/@comment-1715678-20140629145443

The first is a fair point. If EA added better interaction with babies, such as teaching them to walk/talk/potty training/etc., much like toddlers, it may eliminate the need to have toddlers in the game. Personally, I always found both babies and toddlers to be annoying to care for in game, but they also make sense to be there if you're going through all stages of life. Hopefully, with increased interaction with babies, EA isn't screwing us over to make another bit of cash by adding toddlers later.