The UX for Coinbase app/Smart Wallet + Base + USDC is great now, significantly superior to the incumbent market leaders Binance + Tron + USDT, plus a fraction of the cost. With the Stage 1 upgrade soon, technically it'll be a decisively superior solution (of course, even moreso with Stage 2). Yet, the real solution will be an international network of aggressive business development and marketing onboarding merchants and users from the countries where B/T/T alliance has significant marketshare - Turkey, Argentina, Thailand etc. Breaking these network effects is a very steep battle that requires significant local investment and must not be underestimated.

lots of folks have existing eoa

who is caring about them?

need migration tools too 

app.intersend.io | sequence. pimlico. poap. polygon. consensys. paxful. flipside crypto. dash. bridgewater. darpa. secdef. navy. dia | linktr.ee/alexanderchopan

the irony is only metamasks delegator framework is out of the box built to help users w/ their exsiting accounts.