Then why not pay with PayPal?
An exception for mobiles
You don't need PCs' money
Then why not pay with PayPal?
The problem with using PayPal is TE needs to sign an agreement with them to player accounts in-game to link to a specific PayPal account. It will take some costs to develop that system linkage for a game which does not focus its market on the pc platform which the return may not cover costs. It is very different from online giants like Amazon which has built and adjusted their account and payment receipt systems around payment medians like PayPal.
It is extremely difficult for a game developer to find out and deal with what is wrong with their millions of account links to the same number of PayPal and bank accounts too.
Using any kind of webpage to link game accounts and PayPal by managers always carry a 3rd party risk as well.
Winning is a form of art. Consistently winning is a show-hand of skills and luck.