Back in 1800s kids had it clear since early childhood what will their life be. They focused on farming, household duties and finding a wife/husband to bear children ASAP to avoid additional taxes for not having children before certain age. They also aged faster. A person in their 30s looked like today's 50 years old due harsh condition, hard work, lack of sleep and poor nutrience. Crying and acting childish were punished harshly by the parents and community in general.
Higher class had it different. The children were planned to marry another royalty or noble already before their birth for pure political reasons to form alliances. However they looked much younger for their age than the peasants. They were however forced to study languages, politics and economy since young age.
Today we have so much more freedom to choose and harsh parenting is looked down. Children seems to have more protection around them and full freedom to play and learn.