Why 21 years old is the age limit for alcohol in some countries?

Why 21 years old is the age limit for drinking alcoholic beverages Because, scientist claim it is the age the brain is fully grown and is ready for alcohol. :)

It’s the age limit because traditionally, by the time someone is 21, they are out of high school. The government just doesn’t want high schoolers to drink.

dont understand question can you makeit more better

answer; consonant;