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This is just one more reason for people to move away from physical payment methods and shifting to a cash-less financial system in the future.
In theory it is indeed very effective in preventing the spread of the virus quickly. But the fact is, cash is more effective and faster to use for payments, without time off and not dependent on the internet. Imagine, it would be difficult if it was implemented in remote places and traditional markets where internet access is difficult. Is not it?This is just one more reason for people to move away from physical payment methods and shifting to a cash-less financial system in the future.
There are other ways that are more effective and easy to implement to cut the spread of the virus, namely, provide education about the importance of maintaining cleanliness by the local service, implementing a healthy lifestyle, etc.