Nothing is stopping anyone from integrating any other payment method into nostr. It’s an open protocol. It’s not locked in at all to bitcoin only. Someone simply needs to code the spec for their preferred service and build clients that support it.
Discussion
I understand this and that’s why I’m asking why we don’t have this option yet?
Directly relates to my original statement that bitcoin is still niche.
Who is “we”? The people that want that need to build that and make it work and create demand for it.