I have cooked with cast iron ever since I can remember. I have 4 frying pans (I think you called them skillets in the US) 2 small ones, a largish one and a very large one. I also have 4 cooking pots (I guess dutch ovens) 1 large one, one smaller one, one oval one and a largish rounded one with a handle that can be hung in the fire place or on an open fire with a cooking tripod. I guess you would call that a cauldron.
I use them for everything, frying, stewing, baking, roasting, dry toasting, pizza, bread, you name it. They are so old and so well seasoned that they do not stick at all. Fried eggs just slide on the plate!! The oval one is great for pot roasting a bird (chicken, duck, guinea fowl etc...) A bit too small for a turkey, but then again I don't really do turkey! For a long time in the UK I also had a cast iron kettle, which unfortunately, seemed to have disappeared in the move to France.
I just love my cast iron pots and pans and I really would not want to cook in anything else.