Also, those patrollers could patrol more dangerous areas around campus where lighting is low and violent crimes are possible. Therefore, valuable money and resources should not be wasted on underage drinking since the level of alcohol consumption has not changed. There is also the issue of the safety of the drinking population. This means that the students are now compensating for the drinking that they can't do by drinking more when the opportunity arises. This chance to drink can therefore not be wasted and students feel the need to take advantage of it.
Students become careless about other aspects of drinking such as the drive home.
If they allowed the drinking age to be eighteen again, the money that is now spent on prevention could be spent on the safety of the society by providing services that protect all of society. For example, breath-monitoring machines that can determine students' ability to drive could be set up at popular drinking spots. Also, there could be placed a general limit on the number of drinks one person can buy in one night. Such programs would reduce reckless drinking among all people, not just young adults. In other countries, there also exists the need to take care of the younger drinkers.