Okay kiddo, let's talk about public executions in Iran. When someone does something against the law in Iran and is found guilty, the punishment can sometimes be execution - which means they will be killed. In some countries, this is done in private so that not many people can see it, but in Iran, it's done in front of lots of people in a public place like a square or a street.
Now, there are a few reasons why Iran does this. One reason is that they believe it will help people stay away from bad behavior if they see that the punishment is very serious. It's like when you get in trouble for not cleaning up your toys and your parents take away your favorite toy - you remember not to make the same mistake again, right?
Another reason why Iran does this is to make it very clear that crimes will not be tolerated. It's kind of like saying "Hey everyone, we're serious about the law here and if you break it, there will be consequences."
Now, some people don't like public executions because they think it's too violent or scary, and it can sometimes be hard for children to see. Also, some people think that it's not fair to make someone's death such a spectacle - it's a private thing that should be handled with dignity and respect.
Overall, it's a very complicated topic, but the important thing to know is that Iran believes that public executions are an effective way of punishing criminals and deterring others from committing crimes.