@craigraw is spot on here https://youtu.be/eL2eOaIP-W4?si=QneOmUoNYiZWLJHQ

we are worried about scaling to the next billion, while in reality 95% of people exposed to bitcoin don't care about self custody. and no, its not because it is hard and expensive. a 1hour btc sessions tutorial, a 50usd hardware Wallet and 2 usd/tx. you cant make it much easier. priorities should be resiliance and education, only then we should look into scalability (if needed)