Everyone can paint. Not necessarily well.

It’s a nice catchphrase to generate attention for your hbo-series that is now teaching everyone to paint though.

I’d assumed Painting with John was as much about painting as Fishing with John was about fishing. Is he actually, seriously trying to teach people to paint?

What it means to paint "well" is completely in the eye of the beholder.

Some people value technical proficiency, others emotional impact, yet others conceptual cleverness or originality, etc, etc, etc.

Trained artists often value different things in art than the general public, and critics value different things still (and often disagree with other critics).

Ultimately it just comes down to personal preference and taste.

See Ratatouille's interpretaron of "Everyone can cook".

Anyone can cook ≠ everyone can cook. That distinction is the whole point.

(And Ratatouille is one of the best Pixar movies.)