What can substance use include?

Substance use can indeed include casual drinking with friends, as it refers to the consumption of alcohol or drugs, often in social settings. This type of behavior can be perceived as normative in some cultures or among certain peer groups. It is important to recognize that while this may not inherently indicate a problem, it can be part of a broader spectrum that includes both responsible and irresponsible use of substances.

Other options may be related to the consequences or symptoms of substance misuse rather than the act of substance use itself. Engaging in illegal activities can sometimes be influenced by substance use, but it does not define it. Financial difficulties and poor grooming habits could be resulting effects of problematic substance use or dependency, but they do not describe the act of using substances. Thus, casual drinking stands out as the answer that directly aligns with the concept of substance use.