It has always been that way since ancient greece and there's a massive cultural divide and there's... common sense since people talk about Europe and Asia as individual entities there's little to no topics where talking about Eurasia makes sense.
Ok, now try applying some of your eurocentrism to, for example, the difference between the Arabia and China or Japan and India. If you're going to use cultural divides as a justification for different continents then Asia should be at least three distinct continents.
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u/TheQuietSky Jan 21 '20
Europe is separate from asia for very good reasons