Can your child count?

I was in line at Walgreens the other day and the man in front of me brought a pack of cigarettes which came to 5dollars and 28 cents he gave the cashier a young girl between  the age of 18 and 20  five dollars and thirty five cents, the cash register malfunction just when she was about to give him his change and  from that point on  the poor girl was lost, she didn't have a clue to how much she was suppose to give him. After a couple of minutes the man finally said to her  "you owe me 7 cents".  Is that pitiful or what? When it came to my turn at the counter I asked her if she was still in high school, she said no, she was attending ICC (Illinois Community College) I gave a grunt and left. The system is graduating kids out of high school who can not make change from a dollar bill without a machine. What are they doing to these childrens minds, besides saying let the machine do your thinking for you.