"21 means 21" or should we say "25 means 25"

We all have seen the commercials or looked at the label on a beer can and see "21 means 21", but after attending Karen Williams' presentation on the effects of alcohol on young brains, it should be "25 means 25" instead. She mentions that there are many negative effects on the brain from alcohol if it is consumed during adolescence or earlier. This has been common knowledge for years but that old information also figured that by 21 your brain can handle drinking, but new research shows that we might not stop developing until upwards of 25 and sometimes even until 30! So for children to start drinking at 13 and even younger is suicide for the brain. The number of brain cells lost during drinking is substantial for adolescents and people under 25. The effects of drinking on adults is vastly different, with much fewer long-term side effects. To prevent our youth from losing too many brain cells and thus too many points on our tests, a closer watch needs to be kept on our nation's youth. We need to do something to stop underage drinking if we want to see progress from our students as well as see them strong and healthy.