The Census form is designed to gather information about all the relationships in a household.
A household is a person living alone, or a group of people, related or unrelated, who share living space and eat together.
If you have your own trailer on the same site as your parents, for example, you will be given your own Household form as you are a separate household.
If, however, there is more than one family in the same trailer or house you can use Question 4 – Relationship, to say how people are related.
This question means that if different generations are shown to be in the same household, they would be counted as two families.