In the US people are too used to paying with debt. That's why it sounds new to you.
Yeah Americans definitely seem to have too much of an encouragement to spend what they don't have. There are definitely people like that here but they're much fewer.
Some of my relatives have a habit of living in interest free debt, which is nice until they start adding interest... They only have to give you a month's notice as it is. I've considered getting a credit card and spending what I have for the cashback but I'm not sure it's really worth the hassle and most intelligent people here don't care for racking up debt if they have money already (and there are popular you tubers in the US that have huge amounts of debt and seem to fantasise about it - normally with enough cash to pay of the debts too and I think most of them don't know what they're doing - since they quote the stock market making 10% returns).