Teen flying for field trip
Hello, our teenage boy is going to go to the other side of the states with his classmates next month. He'll be flying over. I haven't flown is more than 10 years and don't remember all the rules the airlines have these days. So I am wondering, if you were going to send your kid off like this, what would you pack with them? I would feel much better if he had something for self defense, and was able to take care of himself OK if something happened. We're sending him off with a paypal card instead of cash.
What items must be packed away, and what can he have in his carry on?
Thanks!