Alright kiddo, a public house in Australia is a place where you can go to have a drink or a bite to eat. They are also called pubs or hotels.
You know how when you have friends over, your parents have to clean up the mess after they leave? Well, in a public house, people gather there to have fun and socialize, but the workers have to clean up after them too.
They usually have a big bar where people order drinks from the bartender. You can get non-alcoholic beverages like lemonade or soda, or you can get juice or even a milkshake. But adults can also choose to have alcoholic drinks like beer or wine.
Sometimes public houses even have a restaurant where you can sit down and enjoy a meal with your family or friends. And if you're old enough, you can even play games like pool or darts.
But it's important to know that public houses are regulated by the government to make sure that everyone is safe and that no one drinks too much. So even though they can be fun places, it's always important to behave and make good choices.