Okay kiddo, do you know what a lawyer is? Good! So, a duty counsel is a lawyer who helps people who might not have their own lawyer.
Sometimes, when people go to court, they can't afford to pay for a lawyer to help them. That's where duty counsel comes in. They are there to help those people who need it, but can't pay for it.
Duty counsel can help a lot of different people. They might help someone who is accused of a crime, someone who is going through a family problem like a divorce, or someone who is having a problem with their landlord. They can help people who speak different languages too!
Duty counsel won't be able to help everyone all the time though. They might be really busy or have too many people to help. But they will do their best to help as many people as they can.
In short, duty counsel is a special kind of lawyer that helps people who have legal problems but can't afford to hire their own lawyer. They try their best to help everyone who needs it.