I use both....still using the ss cookware my sister bought me in 1974 for my first wedding....and have several CI pieces at the ready, either stationed on the stove top, or near by..my CI is not coated, other than oiled..
Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has. Margaret Mead
There was a time when I thought cast Iron was the best for every application.
Then Mrs Hoot and I sprung for a very nice set of stainless steel cookware.
I learned in a hurry to appreciate stainless cookware.
I am still trying to learn to appreciate non stick but so far, I ain't convinced
All cookware materials have their advantages and their limitations. I have some of just about everything except copper, enameled cast iron and thin single ply stainless steel. I only have 3 pieces of nonstick - two skillets and a 2-qt saucepan, they are hard anodized aluminum.
"It ain't what you don't know that gets you in trouble. It's what you know for sure that just ain't so." - Mark Twain