The adoption of btc is too technical for many folks.
A lot of the day to day functionality needs to be dumbed down 10 fold.
I Wana pay for a service with sats, but it requires I figure out buying on chain sats, sending them to lightning, and understanding the easiest thing (#mutiny) and then going from there.
Most people (so most of those not currently using #nostr) are never going to go through the effort to do this.