I hate those self checkouts.....
Pain in the but to get your money back if someone forgot to enter the advertized sales price of an article in the store computer....
Their excuse..."You must have made a mistake Sir"
Beats standing behind 10 people lined up at the till.
That $22K would be tax-free and the $15/hr is not tax free and the different is probably what the taxes would end up being.
If a pensioner has an income on top of that then what they owe in taxes at years end would probably swallow up most of their pension cheques. Not a win/win in every case
They are still ahead of the game, albeit they may be working for $2-$3 an hour.