If you speak multiple languages (or are willing to read machine translation) you can often get a much richer understanding of a topic by reading wikipedia in multiple languages. Wikipedia strives to be unbiased, but obviously that's a goal, not a reality. But different languages are biased in different directions. Even on articles of comparable length the articles often emphasize very different parts, and deem different facts relevant.
And sometimes there are facts that are just less relevant in certain languages. The English article on the model railway scale HO spends the majority of its introduction on a lengthy explanation that HO stands for "Half O", and the O scale is actually part of the set of 0, 1, 2 and 3 scale, but English speakers still use the letter O. Which is important to note in an English article, but completely irrelevant in the majority of languages that don't share this very British quirk and call it H0 instead.
Cultural diversity is a big strength of wikipedia. Turning everything into one smooshed together thing would be a travesty. Making the various different versions more accessible to readers would be helpful, but it would also dilute the diversity as it would certainly bring more editors of one language into other language versions of the same article, leading to more homogenized viewpoints and a view that's even more dominated by the most active wikipedians (presumably Americans and Germans)
And sometimes there are facts that are just less relevant in certain languages. The English article on the model railway scale HO spends the majority of its introduction on a lengthy explanation that HO stands for "Half O", and the O scale is actually part of the set of 0, 1, 2 and 3 scale, but English speakers still use the letter O. Which is important to note in an English article, but completely irrelevant in the majority of languages that don't share this very British quirk and call it H0 instead.
Cultural diversity is a big strength of wikipedia. Turning everything into one smooshed together thing would be a travesty. Making the various different versions more accessible to readers would be helpful, but it would also dilute the diversity as it would certainly bring more editors of one language into other language versions of the same article, leading to more homogenized viewpoints and a view that's even more dominated by the most active wikipedians (presumably Americans and Germans)