Plausible alternative explanations:

- Juniors are discouraged to ask for mentorship because they are under pressure to appear competent

- Juniors have internalized from bad experiences that seniors are not to be disturbed

- Juniors grew up in a world where nobody modeled mentorship as a possibility for them; a CS major probably learned async, online, parasocially, without much 1:1 face-to-face interaction

- Juniors don't know what they don't know just yet-- and it doesn't always work well for someone to try and teach them explicitly-- but once they figure this out they'll be more interested in reaching out