Cellphones have become essential

Though cellphones/mobile phones were introduced only a few decades ago, it has become mandatory to own a mobile phone for many financial and other transactions, at least in India, because the officials formulating the policies are extremely self centred, lacking empathy and do not understand the problems faced by those who are less privileged.

For example banks are sending notifications to mobile phone number which can be deleted by the google, tata sponsored R&AW/CBI employees who take a sadistic pleasure in harassing google competitor. Also for making any kind of online payment using a credit card, the OTP password is sent to the mobile number.

So though a person may or may not use the mobile phone for smses, phone calls, they are forced to use the mobile phone if they wish to make any online payment using their credit card or netbanking.