I probably should have phrased my comment better. My point was that it’s perfectly possible to use ggplot without explicit knowledge of tidy principles or tibbles. This is great! And for example, I’m reading through your ggplot book and it doesn’t make reference to it.[1] In my work, we use data.tables (we believe we need the raw performance) with ggplot for visualization and are not using the rest of tidyverse and it works fine.
[1]: In recent versions this seems to be slowly changing.