Which circumstance would not result in a juvenile being taken into custody?

The option regarding having a reputation of good behavior accurately reflects a situation where a juvenile would typically not be taken into custody. Law enforcement and juvenile justice systems often consider the individual circumstances of a juvenile when determining custody. A reputation for good behavior can indicate that the juvenile is generally law-abiding and may not pose a risk to themselves or others.

In contrast, the other situations listed—such as failing to attend school, being found in an unsafe environment, and having a curfew violation—are behaviors that often trigger intervention from law enforcement. These circumstances suggest potential issues that may require resolution to ensure the welfare of the juvenile, whether it's addressing truancy, ensuring safety in an unfavorable environment, or adhering to curfew laws for the juvenile's protection. Therefore, having a reputation for good behavior distinctively suggests that the juvenile is less likely to be taken into custody compared to the other listed behaviors, which could necessitate action by law enforcement.