As someone who has worked for many years in customer service and retail environments, I can conclude from your post that you haven’t worked directly with the public very much.
A 10 day weather forecast typically includes a graph with a y-axis break. It is meant for the general public, and most people have no difficulty interpreting it.
If you know how to read a graph, then it doesn’t matter if the y-axis includes zero
These are in articles for the general public. Assuming even a general understanding of graphing is not reasonable in this case.
I think completing pre-algebra (generally taught in middle school or high school) is sufficient to understand a table.
And if you can understand a table, then you can understand a graph with a y axis break.
As someone who has worked for many years in customer service and retail environments, I can conclude from your post that you haven’t worked directly with the public very much.
I think you underestimate your customers.
A 10 day weather forecast typically includes a graph with a y-axis break. It is meant for the general public, and most people have no difficulty interpreting it.