The lost art of counting change

I just left Raleys after a morning shopping trip.
After I handed the young man at the counter a 20 to pay for a 5.60 tab, he dumped a wad of bills in my hand and said thank you.

Whatever happened to counting change back to a customer?
I remember knowing that I got the right change because the person behind the counter having the courtesy to count my change back to me.
Now, I hold up the line, and count it myself to make sure it's correct.

How hard could it be for stores to teach new employees to do this simple act?

I'm just saying...