PayPal is still not a global company, it is limited to few countries while Google is world wide, that why they are not using PayPal.
I agree they should payout via paypal. it would make payments much faster and more convenient for most of us
Well, we all don't know the real reason why google didn't use paypal. Hoping that google will do this, it's very useful and you can get your payment very fast.
because google have a different payment procedure with paypal, other than that google also has worked with citybank and westernunion, so google might not use paypal for payment