1. The fact that having the drinking age at 18 would increase the drinking and driving on the road
  2. Drinking at a younger age causes more damage than drinking at a older age
  3. There are more 18 year olds than any else, so there would be a mass influx of drinkers younger than 20
  4. 18 year olds are still growing and getting into the habit of drinking at that age can cause mass damage
  5. There would be kids coming to school drunk all the time, lowering the amount of information the kids can absorb