* Social class: Wealthier families were much more likely to send their children (mostly boys) to schools, often private tutors or grammar schools.
* Geography: Schools were more common in towns and cities than in rural areas.
* Religion: Religious institutions often ran schools, particularly for boys intended for the clergy.
So, the answer isn't a simple yes or no. Some children did attend school in 1666, but it was far from a common experience for all children. The majority likely received education at home, or through apprenticeships.