system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why we have evolved with the ability to physically shut off our sense of sight, but not any of the others.. hearing, smell, taste and touch?

Sitting on the tube and realising i made huge error of leaving my headphones at home it got me thinking, why can't i "close" my ears. That is, without of course sticking my fingers inside, why haven't i evolved to protect my hearing at will, much like how eyelids protect eyesight? I have been reading many papers on our senses and haven't come to any solid conclusions. Hopefully someone can answer this in a way that i can understand.
gpt
Just because you close your eyes, you don't "shut off" that sense. You're still very much able to see the light that get through your eyelids. Furthermore, eyelids were not evolved to turn off your sense of vision, but to protect them from different stuff that can get in to them and damage them, and keep them moisturised so they don't dry out.