I'm teaching my friend programming

Specifically web development. Also I'm drunk right now so I might sound stupid. Anyway, I'm sort of teaching this guy about web development. Not even full stack shit, just basic HTML and CSS and JavaScript. He said he's following some online video series. He claims to have been learning it for a couple weeks now. Today someone brought up the topic of different ways of naming variables. I asked my friend if he knew about camel case. He said no. I asked him if he knew about naming variables. He said no. I asked him if he knew what a variable is. He said no. I had to tell him what a variable is. He still has a hard time understanding it. This is a dude with a college degree, who has a hard time understanding that a name can correspond to a value. Key-value pairs.

A guy who says he has been learning web development through videos (which I know he has watched some of -- he's not lying!) doesn't even know what a variable is. He's been learning for a few weeks and doesn't even know something like this.

I don't even know what to say.