The worrying thing here is that with more people getting into crypto, we might see a surge of newbies losing a lot of money in trading since PayPal made it much more accessible. Although, I feel like it can help a lot of people too, we might see some people losing but we will also see people profiting.
PayPal trade has charge back but Bitcoin and crypto transactions are irreversible.
I don't choose PayPal if I have other payment methods to choose and PayPal is not the only way to join crypto. Gift cards, fiat transfers through banks, peer to peer marketplaces. I know PayPal have big user numbers but they need cryptocurencies to maintain their customer number. Because if they don't adapt to the main stream of cryptocurrencies, they will be beaten by opponents, other merchants, etc.