yes. it is possible to bitcoin to overcome paypal. when the awareness increases it happens to overcome but takes some time for that.
I have read an article yesterday on cointelegraph that PayPal will adopt bitcoin soon. At first, I thought that PayPal will be hard with this decision and they won't allow bitcoin to enter their business. But with this move, it's clear that bitcoin did overcome PayPal, it's just a matter of business.
It like saying biodiesel has overcome Chevron.