I’d just like to point out the definition of “fluency” is completely arbitrary and varies by person to person. But most importantly, I’d just like to mention that your definition of “fluency” does not match the statistics you’ve cited. Specifically:
The US State Department considers Japanese a category IV language and estimates proficiency in 88 weeks or 2200 class hours. I would assume this is where you got your statistic from. In which case this instruction only takes you to “a score of “Speaking-3/Reading-3” on the Interagency Language Roundtable scale.” Which, according to the Language Testing Institute itself only brings you to the middle of the scale. 5 Is considered “fluent.” This estimated 2200 hours only brings one just past what they consider “Limited Working Proficiency, Plus” which, again, is halfway to what they consider fluency.
I’d also like to point out that this number is the average amount of time it takes. An important distinction to make because people in these programs come from all backgrounds. Some have experience with Kanji, or Japanese in general, and some are starting completely from scratch. So 2200 hours is an average figure and not the standard. A student with 1400 hours and a student with 3000 hours makes the average 2200, but that doesn’t make it the standard. Which leads me to…
Even that figure can be misleading. Another organization, JLEC, a Japanese Language teaching organization in both America and Japan, had data with even higher numbers:
It was estimated for students who had experience with kanji could pass the N1 in 1700-2600 hours. But students with no prior experience with kanji would take 3000-4800 hours.
Which brings me to my main point:
I feel like that’s not only incorrect, but it’s condescending, if not just outright rude. Different people learn a language at different rates due to a whole host of reasons. Somebody not reaching “fluency” (again, completely arbitrary definition) isn’t due to them doing something wrong. There’s a whole host of environmental reasons why people learn languages at different rates.
That’s not just my opinion; that’s science. Just off the top of my head: current brain plasticity, previous exposure to foreign languages to increase aforementioned plasticity [1] [2], and exposure to foreign languages at specific periods in childhood [1] are all HUGE biological benefits one can have. Even the quality of education is going to be a huge factor. A student with a professional educator paid for by the U.S. government complete with materials tailor-made to people in the program is absolutely going to have a better grasp of Japanese than somebody with Bunpro and Genki II in the same timeframe. Doubly so if somebody has had exposure to parts of the language or even the language itself.
Sorry for writing a book. I wound up having to go over similar research for my Master’s thesis and I find most of it super interesting. But I also just find this attitude of treating language-learning like a race so disappointing. There are people just starting Japanese, likely on their own, reading stuff like this and being completely mislead to disappointment. And it’s especially frustrating because I know of people, really capable people, that give up before they even start because they see this behavior.
If you are studying, if you are seeing results, just keep going. Don’t compare yourself to this.