A(n) theorist might propose that substance abuse and dependence are more likely to appear in families and environments where substance use is valued, or at least accepted.

A sociocultural theorist might propose that substance abuse and dependence are more likely to appear in families and environments where substance use is valued, or at least accepted.

Step-by-step explanation:

The main focus of a sociocultural theorist lies on the study of anthropology, based on involving the social and cultural aspects.

An example of socialculture is basically the ability to knowing and recognizing  the people - who have been around you - and the backgrounds of the families they have.

A sociocultural theorist may have a deep study on the historic traditions, hobbies, habits, logical patterns and a set of beliefs present among the masses in the population, based on which he might propose a theory related to the society.

Therefore, a sociocultural theorist might propose that substance abuse and dependence are more likely to appear in families and environments where substance use is valued, or at least accepted.