Childhood in medieval England

Childhood in medieval England was determined by both social and biological factors. According to common law, childhood ranged from the birth of a child until he or she reached the age of 12. At this point, the child was seen as capable and competent to understand his or her actions, thus rendering them responsible for them. According to canon law, girls could marry at the age of 12 and boys at the age of 14.
The first year.
For most children growing up in Medieval England the first year of life was one of the most dangerous, with as many as 50 percent of children succumbing to fatal illness. During this year the child was cared for and nursed, either by parents (if the family belonged to the peasant class) or (perhaps) by a wet nurse if the child belonged to a noble class.
Ages seven to eleven.
At age seven play was still an important part of the child's life; however, as the child's ability to learn and fulfil family duties grew, so did their responsibility to contribute. If circumstances allowed, seven was the age of entrance into formal education. Peasant and urban children took up responsibilities around the house.
Adolescence (ages 12–14).
By age 12, the child began to take on a more serious role in family duties. Although according to canon law at the age of twelve girls could marry, this was relatively uncommon unless the child was an heiress or belonged to a family of noble birth. Peasant children at this age stayed at home and continued to learn and develop domestic skills and husbandry. Urban children moved out of their homes and into the homes of their employer, or master (depending on their future roles as servants or apprentices). Noble boys learned skills in arms, and noble girls learned to run households.
The end of childhood and entrance into adolescence was marked by leaving home and moving to the house of the employer (or master), entering a university or into church service.