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If he allows LTA to implement without checking nor stopping, and force people to change to SimplyGo, then he is already at fault. Push blame on Iswaran and who was suspended since July shows he is a misfit to be a Minister.

before his time ,  

www.lta.gov.sg › content › ltagov › en › newsroom › 2021 › 1 › news-releases › account-based-ez-link-cards-available-for-use-in-public-transpor.html
LTA | Account-based EZ-Link cards available for use in Public Transport ...
News Releases 28 Jan 2021 SimplyGo Account-Based Ticketing (ABT) From 28 January 2021, EZ-Link adult cardholders will have the option to update their existing EZ-Link cards to account-based at ticketing machines or buy new account-

and the system is unfriendly to those top up frequently 
but not using credit or debit.