why do you have to be 21 to buy alcohol
Legal drinking age The most commonly known reason for the law behind the legal drinking age is the effect on the brain in adolescents. Due to the fact that the brain is still maturing, alcohol can have negative effect on the memory and long-term thinking. Alongside that, it can cause liver failure, and create a hormone imbalance in teens due to the constant changes and maturing of hormones during puberty.[2]