I have 2 cast iron skillets I’ve had for over 10 years neither have rusted both are kept in the house.
I don’t remember how I seasoned them I’ll guess right now, vegetable oil. Probably cooked a lot of bacon in them.
I’ve never had them in a dishwasher maybe that would matter?
I was looking at a cast iron skillet at Macys a month or so ago. The handle was like 6” long, the handle was so short to me I could barely hold the skillet, the skillet was to heavy.
The handles on mine are a good 10” or so.