>I don't understand why that YouTube video requires age verification. As far as I know that prevents it from being played to anyone not logged in, including embeds, and severely limits people from seeing it.
Yep. Usually, they play when changing from
https://www.youtube.com/watch?v=0yXTHODE24Q
to https://www.youtube.com/embed/0yXTHODE24Q
but not this.But
youtube-dl https://www.youtube.com/watch?v=0yXTHODE24Q
works. :D https://wiki.archlinux.org/index.php/Youtube-dl