In the US most places have a little reader thing that scans the barcode and tells you how much you’ve won. This helps cut down on the time it takes the cashier to scan each one. You know instantly if you’re a winner, no need to look at symbols.
For a visual version of the above. Go check out Mr Beast’s video where they scratch off 1,000,000 dollars worth of scratch offs. The ending wasn’t surprising to me but may be to some.
A very common, sad sigjt in rundown areas is some old person, clearly with limited funds, standing at the lotto counter in a convenience store, just rapid fire scanning scratch-offs. And then buying more scratch offs and rapid fire scanning them, etc.
How are customers protected against sellers pre-scanning tickets to find winner? In my location, winners can only be determined by scanning the barcode, and entering a value hidden under the scratch panel.