It is near-majority user input error, wow (sort by date, top comment sorting is disingenuous). I've argued for bayesian analysis of advertisement CTR and user-error for years, but this is beyond any model that I argue for.

On my tablets it looks like you have to swipe the related videos to the bottom then you have a comment section. So it's in the right area for how kids navigate youtube.

Image of the comment section. That's fascinating, I never realized websites like youtube were being used so extensively by younger generations. Really makes me feel old and I'm college aged.

https://i.imgur.com/ZSndTA3.png