Environmental factors such as closing times for venues that serve alcohol can have a huge impact on the behaviour of individuals.

Youth workers are always quick to point out that problems or harms that come from alcohol and drug use are not just the result of individual factors and that drug related harm can be reduced by changing environmental factors. This ABC news report backs up this notion and suggests that altering closing times of clubs and pubs that serve alcohol has the effect of reducing Alcohol related harms such as violence between individuals.