some people use Paypal as

- Withdraw money from Google Adsense (blogger/apps dev/etc.)
- Withdraw money from Clixbank (affiliate thing)
- Buying things from Lazada (cos sometimes cc/db card jammed hard especially when LZD on campaign)
- Buying things from Amazon/Ebay/Aliexpress (etc.)
- Transfer money from Payooner to Paypal or vice versa.

tl;dr : Paypal is actually useful for who make money online with Amazon Affiliate/Google Adsense, etc.

Majority use as business intended.