Why would banks use XRP?

I'm curious, why would banks consider using XRP? Could you elaborate on the benefits it offers that traditional banking systems lack? I've heard rumors about its efficiency and cross-border payment capabilities, but I'd like to hear a more detailed explanation. Is it really faster and cheaper than the current methods? And how does it ensure security and reliability in such a volatile market? I'm also interested to know if there are any regulatory concerns or challenges that banks might face when integrating XRP into their operations. Could you please shed some light on these questions?