Although it is legal for those aged 18 and over to buy and drink alcohol, that doesn’t mean it’s any less powerful than other drugs.
Alcohol is a depressant, which means it slows down your body's responses in all kinds of ways. Just enough can make you feel sociable; too much and you’ll have a hangover the next day, and may not even remember what you got up to; and way too much alcohol in a single session could put you in a coma or even kill you.