PayPal is a very popular payment system. It is known in many countries of the world. Bitcoin still can not compare with it. These systems are not competitors to each other.
yes there is no doubt that bitcoin is more popular than any other currency, in past people where using different meths to find bitcoin more reliable and confident. we can hope that in future bitcoin will be more and more trusted and reliable currency, on other side as time pass paypal is losing their properties, as we can see that in most area people are now using bitcoin instead of paypal. as the service of paypal is not available everywhere, where as bitcoin is available everywhere.