It has already been mentioned that not "every coffee" has to be paid with Bitcoin. But there are definitely areas where Bitcoin can compete:

- international transactions, as a competing system to SWIFT
- transactions for and to groups which are excluded from the financial system. Not only the typical "unbanked", but for example also people excluded by authoritarian regimes.
- private transactions you don't want to appear in the next personal data hack

There can be different types of success though. I would rephrase the original question into "Can Bitcoin achieve sustainable long term success without mass adoption"? And then my answer is no.

But even as a speculative asset I think it can succeed for several years more. Eventually, the hype will however die down, and we'll see "the mother of all bear markets" in this case, or a Super Bear Cycle. This will be the case when nearly all those who would buy speculative assets also own Bitcoin, and there's no "bigger fool" who would buy it.

Such a "Super Bear Cycle" could however work also like a healthy reset. People which are into Bitcoin for the tech and the censorship resistance maybe won't leave it and create slowly the base for "true" mass adoption.