While I prefer decentralized trading, I think that more and more centralized exchanges like Paypal entering the cryptocurrency market is a great thing as it will just drive adoption forward and allow for more methods to obtain Bitcoin. If it's easier to obtain from centralized exchanges, then there's also going to be more volume for decentralized trading.
You are speaking of easy methods to buy bitcoin and singing praises of PayPal, but it seems you have missed an important point. You can't buy bitcoin with PayPal, you can't sell it with PayPal, you can't even call your bitcoin yours when using PayPal, because PayPal is not interested in giving you control, they rather prefer to control you. For them, you are not trustworthy or not responsible enough to manage your money. They want to prevent you from making mistakes constraining your freedom, controlling your decisions, telling you what to do, and how to behave. Indeed, you should welcome centralized bodies if you are no longer in need of freedom to choose.
Unfortunately, Bitcoin gradually going mainstream means limiting the freedoms of people using it.