Easy: it's censorship-resistant. You send a transaction and no middleman, no financial organization, no one can prevent you from sending it. You can transact with anyone, anywhere, 24/7/365, however much you want, $100 or $100 million. No other system does this.
On the other hand, with legacy systems, Paypal can freeze your account, Zelle limits your sends to $2500/month, a credit card company can deny your transaction, a bank chooses to not process your international wires on "weekends and holidays", etc. Limits everywhere.
Easy: it's censorship-resistant. You send a transaction and no middleman, no financial organization, no one can prevent you from sending it. You can transact with anyone, anywhere, 24/7/365, however much you want, $100 or $100 million. No other system does this.
On the other hand, with legacy systems, Paypal can freeze your account, Zelle limits your sends to $2500/month, a credit card company can deny your transaction, a bank chooses to not process your international wires on "weekends and holidays", etc. Limits everywhere.