Unfortunately, this is a common problem in modern societies. It affects young people, but not exclusively. I worked about 10 years ago as a specialist consultant at a large company. A woman working in administration sent me an email asking how to do something. I replied in a long email, step by step with detailed instructions – it was like a tutorial for dummies. A few days later, she sent me the same email asking how to do it. She didn't even bother to rewrite it; she just copied and pasted her previous email. Surprised, I went to the company and discovered that when she saw the long email, she didn't even read it.
People not only don't read longer texts. The same applies to all video tutorials. On YouTube, videos longer than 10 minutes have significantly lower views.