Australia has a new rule. Kids under 16 cannot make social media accounts. This is a new law.
Some companies do not like this law. They say it is not good. They want the law to change.
The leaders want kids to be safe. They want to stop bad things online. This law helps kids' minds too.
One company, Reddit, is looking at the law. They say it is wrong. They think there are other ways.
Two young people also have a case. They talk about freedom. They say talking is important.
The court will look at this. It will see what is right. The world watches Australia.