Sometimes I wonder if all these people that criticize or that think that a Latin alphabet can be adapted seamlessly to all languages have tried to study past a beginner level any logographic language.
I have studied Japanese, and still think that a logographic writing system was a mistake. Consider the time and effort it takes for native speakers to become literate. I also think that the Latin alphabet could be easily used for Japanese, which does not contain any sounds that do not have an obvious equivalent in English, and even if it did, we could always repurpose a character or sequence of characters for that so…
Also, it's not like you stop learning even after school. For example English has according to the Oxford dictionary 171,476 words in current use excluding inflections, and several technical and regional vocabularies. Does all English university students know these words?