Meta made a big legal deal.

It has new rules about checking ages.

Meta must know who is a child.

Other companies do more too.

Google, TikTok, and Roblox help keep kids safe.

The deal is for $18 billion.

State leaders made this deal.

They said Meta hurt young people.

Meta made Instagram and Facebook.

These apps caught young attention.

They hurt mental health.

The deal has 48 states.

It also has Washington, D.C. and U.S. territories.

Meta takes government IDs to check age.

Meta says it deletes them in 30 days.

Many people do not like this.

They do not want a big company to see their ID.

So companies use AI to guess age.

Google uses AI on YouTube.

It looks at watch history.

Meta uses AI on Instagram.

Meta's AI looks at height or bones.

It also looks at posts, likes, and login times.

In the deal, Meta makes its age check better.

Outside people check it.

Meta has goals for mistakes.

A mistake is when a child looks over 18.

Companies like Yoti and Persona use video selfies.

They guess age from a face.

Roblox asks for a video selfie.

Players need it to talk to others.

Some experts say facial age checks are not always right.

They can be wrong for women or some races.

Some companies say app stores should check age.

Apple and Google have app stores.

Google says that idea does not work for computers.

It does not work for shared devices.

Critics worry about privacy.

They worry about a free internet.

The Electronic Frontier Foundation warns about personal information.

Every system asks for it.

It can leak or be misused.