I'm a semi truck driver driving on I-77 in NC and I saw a kid watching YouTube on his iPhone in the back of an SUV?

The plate is from Pa.

You stay there. I'll go for help.

So what is your question

Is there a question in there I'm not seeing? There's nothing wrong in what you describe either. Are you driving and posting this at the same time? Stop one or the other if you are.

Probably watching some rap or other degeneracy.

Definitely report it
before you hear of another tragic accident on the news and wonder if he caused it

What business is it of yours what a passenger does? It wasn't the driver.

And?

So

Well, seems like he has a good internet connection.

Is this your first day on the job?
Didn't you travel on roads much before getting your CDL?

Do you mean in the cargo section of the SUV?
Otherwise, I can't figure what the importance of your note is about.