The Drinking Age: Legal Age Should Be 18 The legal drinking age in all states should be eighteen. First, the problems and costs associated with underage drinking might be alleviated. Second, studies show that alcohol is easily obtained, and most eighteen- year-olds who do so drink sensibly. Next, Louisiana's experiments with lowering the drinking age to eighteen show no changes. Last, other eighteen-year-old rights prove that drinking should be legal. The problems and costs associated with underage drinking might be alleviated. Since underage drinking is an age-old proble