Yes, how could that be exercise? to collect cans , & card boxes?.....when I was young , I collect, bottles from the neighbourhood, sauce bottles, beer bottles, pimpled F&N Cordial bottles ( 20 cents return value), not for the exercise for the money to buy the toys I want. The "wants" motivate me to become a "collector" not that I need the exercise but, the fulfilment of a want. This is so, of the elderly collecting cans etc..the fulfilment of some needs......to be able to earn some money & pay for the needs....the need to eat & the need to pay for medicines to survive, hardly said to be fulfilment of a want?...they don't want to exercise.....they need to live.
That reminds me that when I was growing up at the foot of Mount Faber, I was also collecting soft drink bottles and beer bottles, so that I will have money for soft drinks, ice cream, ice balls, chendol (it was 5 cents a bowl outside Radin Mas School, near the junction of Kampung Baru Road).