Received an email from Paypal, I think I understood it correctly:
Summers arrived, a time for picnics in the park and holidays at the beach! Whether its a round of beers or festival tickets, youre likely to be sharing costs with friends. And with PayPal, its free to pay each other back.
When you send personal payments with PayPal using your bank account or PayPal balance, theres no charge. So as long as you have your bank details registered to your PayPal account, you can send money to your friends and family for free!