and yes UK faster payments system is great but it is not yet the backbone of global payment processing. the world is larger than the UK and as we continue to connect globally online and become more digitally nomadic there will be more need to pay users outside of a UK-to-UK bank system.
banking is a radically different design philosophy than a protocol where all addresses and transactions are treated equally regardless of wealth, class, and other social factors like race and family connections.
"Oh, that's not a useful system, because there are limits."
"Well, when you get near those limits the bank starts to work with you so those are still not roadblocks."
"Oh, well that's just because they prefer the rich to the poor."
No, you miss the point. At lower amounts, it's a non-issue because you're not hitting limits. At the point where you are hitting limits, it's facilitated to smooth those things. End result is that there should be few issues, regardless of amounts.