How bad is it REALLY to wash your hair every day?

I enjoy taking a full shower every morning. It wakes me up, makes me feel refreshed, warm, and ready to take on the day.

But that also means I wash my hair every morning. I’ve always heard that’s a big no-no, but I haven’t noticed any visible downsides — my hair has looked and felt the same for decades.

So, convince me: why SHOULDN’T I wash my hair every day?