Yes. This is very true. Crypto is niche... Bitcoin is more niche and nostr is Uber niche.
Not everyone needs to care about this stuff or is even capable or ready. Important to realise this and meet people where they're at IMO.
Being open to teaching or telling others about it all is great but also not being pushy or annoying.
This requires learning about: computing science, tech, financial theory and sociology. Not everyone has the bandwidth for dense material.
Gentle and slow approaches work the best IMO
