The drinking ages were lowered to 18 in the 70's as a result of the fact the persons were considered to be an adult at that age and not a minor.
You overexagerate the results, the large majority of DWI's are adult's in their 20's.
THAT is the reason the limit went back up to 21 after a few years. Something the Libertines will ignore or deny. But it is FACT.
More bull$hit, at least get your facts straight. The drinking age was raised to 21 as a result of federal law's blackmailing the states into raising the age to 21 or otherwise they would forfeit their federal highway funds. However, those drinking laws were not applicable to military installations.
Yet another pontificating control freak heard from.
---max
Sorry, but it has been illegal for minors to drink for a couple of decades now. So of course "the large majority of DWIs are adults in their 20s," genius.