I suspect that many of them don't recognize a knife and fork. If they can't hold it in their hands and eat it, it must not be food. All of this, of course, is a product of our present society. Everybody has a job that earns money. Dad works, Mom works, the kids work.
Nobody has time or energy to cook.
And kids grow up thinking that if it takes three minutes in the microwave, it must be cooking. A casserole isn't food to them. It's never been frozen. You don't just zap it. Those of us who have done time in the military have to wonder what will happen if, heaven forbid, the draft ever returns and these kids have to serve.