That's obviously a false extrapolation on cultures.
In Paris you're not spending one euro on espresso typically. It's going to be closer to 2.50 to 3 euros. Adjust that to dollars, you get more like $3 to $3.70, adjust for income differences you get $5 to $6 (US incomes are far higher than French incomes, and especially if we're comparing eg NYC vs Paris).
https://francetravelplanner.com/go/paris/shop/costs.html
Americans have not been conditioned to accept high prices for drinks. When was the last time you wandered through Walmart's beverages section? Their grocery section has half an aisle for inexpensive coffee and tea products, and then another half aisle for inexpensive soda products. As another example, cases of water at Walmart go for $4 for a brand label pack of 24 to 32 500ml bottles, or $0.13 to $0.17 per unit. If anything, most Americans are conditioned to expect to pay very cheap prices for purchased beverages. That's why Starbucks is considered expensive to the average person.
A small group of high income Americans find it acceptable to spend what is a trivial sum for them, on such product experiences.
The notion that many Americans are spending $15-$20 on daily beverages, is laughable. The median income is $30,000. You want me to believe a lot of people are spending $7,000 annually on beverages? Yeah right.
It's equivalent to saying: in the US you can buy a vast array of great wines for $10 to $20, while in France people are paying $140 for wine.
Sure, some people in France are. It'd be false to pretend a large number of people in France are doing that regularly. Few Americans are actually spending outsized sums of money on beverages.