prototyperspective

It’s because the education system is utterly outdated across the world. No digital literacy, media literacy, or health literacy in the curriculum but lots of things you’ll never need and forget to never be useful again within a few months. Studies should investigate things relating to this subject.

It’s also because of the quality of search engine results but both are directly linked, people need to learn how to use search engines etc.

Because people are not so interested in reinventing the wheel a thousand times when there could be just 3 optimal open source solutions.

Also many products are plain useless or even harmful to society such as mundane noneducational distracting addictive mobile games.

Here are some correlations of language skills and other intelligence factors or evaluations (e.g. IQ) via a study (recently integrated the info into the article: Neurogenetics – language GWAS

However, I largely agree – see for example this argument / its sources