I'm old school.
I do not use paypal,, or any other form of electronic banking. And I know many folks who also refuse to do business with companies that operate certain ways.
(1) A phone number to where you can call, talk to a sales rep, get questions answered,, and place an order.
(2) Companies or sellers who demand an electronic form of payment.
(3) Companies or sellers who fail to offer some form of direct communication. Emails get overlooked or not answered.
(4) Companies limit themselves by ignoring the people who don't have a computer, a credit card or such things.
So, while some people may prefer to use paypal, or other electronic methods of paying stuff,, there are still PLENTY of people who refuse to deal that way. I often wonder what percentage of business get diverted to other companies that DO offer direct contact, and other forms of accepting payments.
So, to answer the OP's question,, I often wonder how can you use it (paypal,) when there are other methods available?