Don’t limit yourself and say because i am in a developing country, i can’t have a Paypal account, well that was in the past but now Paypal account can be created and owned by almost every individual in every country.
As a Nigerian, Paypal was not accessible to us but that all changed on August, 2014 where Paypal added Nigerian to the list of countries on the sign up page meaning, we too can register, own and make payment with Paypal on e-commerce websites that have Paypal has a payment option.
Seee! Its possible. Read this article to know what to do and what not to when registering for a Paypal account How To Register a Paypal Account.