Paypal is the absolute definition of a company that should be using a stablecoin. Its goes against everything crypto used to stand for, but so does Elon Musk, and crypto 'investors' take his Tweets as the word of God. Paypal is also what made Elon all his money. So there is that....
Its not a dying service. Its used worldwide to send money 10x faster than a bank.
Yes, it's still popular as it is and got millions of users worldwide so it's not really a dying service, they're just adopting the trend that might get them with their competitors and so they've added crypto.
Also Libra Coin didnt fail. They changed the name to Diem.
It is the reality that failed and that's why they have to replace the name into Diem. To avoid being tagged to the failed project that they've once worked for.
They are thinking smart on situation since little by little they are been overcome by bitcoin and its a good move for them to adopt bitcoin since this could make them survive in this business so for sure others will follow since this is the new trend right now. Also I see it a good move for having that plan so hopefully they will succeed since there's a huge competitor if we talk about stable coin and for provably they will get a hard time to surpass the other who came out first.
Well, as for the success, we don't know with that. There's too many stable coins in the market already as long as they can provide that they're backed with real money and it's for sure going to be a centralized stable coin.