@The little I know
i am not at all in favor of underage drinking or breaking the law but “it is not in vain that there are laws about minimum drinking age, and that these laws were originally written for age 18, then raised to 21.” really – who ever told you everything the government does is not in vain – so requiring 66 hours of driving practice before getting a license is not in vain? (the parallel is that both were designed to prevent traffic accident fatalities)it was actually done because this was a huge issue to women voters and was probably considered to be politically expedient at the time to do so. it was also based on common law which had people becoming adults at age 21 which is also not relevant to todays world.