Satoshi created Bitcoin to stop command economy BS like bank bailouts, not because he was charged fifty cents extra for using his AMEX to buy a latte.
Uppercase-B Bitcoin (or lowercase in Szabo notation) the first viable and most secure ecash competes with gold and central banks.
Lowercase-b bitcoin (or uppercase in Szabo notation) the blockchain technology competes with Visa/Paypal/Square (via altcoins).
Bitcoin is global revolution against authoritarianism, not the next fucking Dwolla.
There is a reason why he used the abstract & introduction of his whitepaper NOT to speak about bailouts but small transactions. You might say he was wrong or the bailouts problem is more important ( which i agree ) but you won't change the fact that Satoshi's vision is also about a global payment system for casual transaction.
I think the monetary policy is a much more political problem whereas the small transaction is consensual, everybody wants to pay less fees. It is a much better introduction to keep everybody on board for the next 15 pages of his white paper.
When Bitcoin was just a tiny baby and hardly anyone used it, micro-tx were feasible. There was a thing called SatoshiDice, which used the blockchain as its payment rail for trivial gambling.
But then Bitcoin grew up and up and up. Bitcoin grew so big that SatoshiDice-type things didn't fit on its increasingly valuable/popular blockchain.
And now, with a multi-billion-dollar marketcap, technological maturity, and marketplace acceptance, Bitcoin's different aspects have been thrown into sharp relief and bifurcated in application.
That's why Szabo also uses the big-B/little-b (protocol/ecash) distinction. "Eventually" (perhaps Soon), micro-tx will return to BTC, after SC/LN makes them again feasible.
I hope explaining all this to you like you are five years old has helped you understand more.