In real life, the toddler and child ages take 12 years. In the game, the toddler and child ages added together take the same amount of time as the adult age. Your Sims do not have enough time to go to university, enjoy young adulthood, date, get married, raise a family, and finally become an empty nester and enjoy their retirement. The lifespans in The Sims 4 are not realistically balanced.