You are completely out or reality.

YouTube contains lessons from the most prestigious universities; divulgational material from "all" countries and times; intellectual commentaries about the past hours from most prestigious academicians; video documents of paramount importance.

All of this updated daily.

I receive daily RSS from hundreds of channels and I know very well what we can find in it.

That it is surely of course also full of trash is not an argument - also bookstores and libraries will be.

People in formation and in cultivation are mandated attendance - the opposite of avoiding it.

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Edit: when you want to have a taste of what YT contains, check of course: https://news.ycombinator.com/from?site=youtube.com - if you are here... What we find HN worth is abundant, and just a tiny subset of what has worth on YT (we do not consider HN a primarily video submissions collector).