A town hall is like a big meeting where people who live in a town come together to talk about things that are important to them. It's usually held in a big room or a building that belongs to the town.
Think of it like a giant family meeting where everyone gets a chance to talk and share their thoughts on what they want to happen in their town. People can ask questions about important issues that are affecting the town such as how money is being spent or how roads are being fixed.
The town hall is usually led by the people who run the town such as the mayor or city council members. They listen to what people have to say and try to make good decisions for the town based on what they hear.
It's important for people to attend town hall meetings because it gives them a chance to have their voices heard and to make a difference in their community. Everyone in the town has a say and can help make decisions that will make their town a better place to live.