Put the laminated ID card on the neck lanyard with the other stuff.

It's maybe a 50-50 chance that he will remember/be able to get his pack in a scary situation. If I can leave my purse and paycheck on the seat when I bolted from a burning car, he can!

If you get him a cell phone, get the cheapest and plainest (TracFone?) that is just a phone. He doesn't need a camera and porn access. If it's 'below standard' in attractiveness, it's less likely to be stolen and no great loss if he misplaces it.

Sue