There's a good amount of discussion about how much grief boys who play flute get from their classmates, and I'm hoping this surprises most readers. There were male flute players when I was in middle school forty years ago, and no one cared. Now, the drummers in my school's band are evenly split by gender, with the occasional nonbinary student. As for boys who read books with girls on the cover getting a hard time... we have a lot of discussion about this in my library (and have for years), so I hope this is not the case at my school. I'm sad that Jung's experience of the world has so much negativity, but perhaps books like this will help change that.
Personally, I was disappointed by the twist that this took, because I was so looking forward to a particular adventure that didn't happen, but I'll definitely be purchasing this. Jung's Geeks, Girls and Secret Identities (2012) circulates well, and The Boys in the Back Row addresses a lot of timely issues of friendship, racial and gender related microagressions, and toxic masculinity.