High school physics and chemistry equips students to make (a very limited set of) predictions. High school biology super doesn't. When you're learning chemistry and physics, it feels like you're learning a systematic set of rules that let you approximate and model the world around you. Biology...doesn't, not really. Life is just more complex and higher order, and it's that much harder to actually use the study of it to understand the world immediately around you in any meaningful way.

It's still super cool, but it makes learning about it as a science less satisfying, since it's less friendly to the standard scientific method.