Beginners Don't Waste Your Lingots on The Quiz
Just learnt the hard way that I shouldn't have paid 25 lingots for a quiz that's impossible for me to pass at my level (i.e. 6). Just a word of advice to wait until much later.
It's not a pass/fail test, it's a progress test. If people don't have a lot of Lingots, then yes, it would probably be better to wait. but the whole point of it is to see how you progress over time. First time I broke two for German, I was delighted, not because I 'passed' or 'had failed before' but because I could see my progress.
It's not possible to fail at it, because it isn't that kind of test.
It is trying to test you (roughly!) over the whole tree. If you get something right, it'll go further down the tree, if you get something wrong it'll send you to easier stuff more or less.
I agree, it's hard when you're a beginner (I have three languages I have failed to even get to 1 with, and that's only of the languages in which I've tried the test, which I have only done in a handful of languages), and if you have limited Lingots then it's probably not worth it.
However, for people who really want to track their progress and/or have a lot of Lingots, then yes, it is worth 25 Lingots, even for languages for which an individual finds it laughably difficult :)