Big app companies are in court. They make social media. They are here to talk.
They made apps for young people. Now, young people use them a lot. This is not good for them.
The court case started. It is about young people and apps. The apps keep them online.
One woman is helping. Her lawyer says apps are tricky. They make people use them more.
This makes them feel bad. It causes worry. This is a big fight.
Other companies made a deal. But these companies have a big trial. They will look at the apps.
The lawyer thinks this is important. It is the first time for a jury. It can change rules.