India – New credit & debit cards to be disabled for online transactions.

I personally feel just having an option to disable the cards on issuance would have been more productive. This kind of a feature is not obvious. How would banks educate customers on this? Quite a lot of rural/semi-urban people do not use netbanking or app based banking. They will need to submit a physical form to enable this. More paperwork. Quite inefficient overall & more hassle for end users.