If you're an older adult with high ferritin levels (genetic or oterhwise), you should avoid cast iron. High ferritin has been linked with hepatic injury, cancer, and a other endocrine disorders.
See https://irondisorders.org/too-much-iron/
I'm heterozygous for a hemochromatosis gene and my ferritin is elevated (although not nearly as much as if I were homozygous). I give blood every month to maintain normal ferritin levels.
I'd never thought about my cast iron fry pans as a source of dietary iron. Obvious in retrospect.
I donate blood using apheresis machines (i.e. the "2x" RBC) when possible, since I need to hoard my plasma for other another health condition.
Oh good lord :facepalm: "Stainless steel cookware as a significant source of nickel, chromium, and iron" https://pubmed.ncbi.nlm.nih.gov/1514841/ (1992)
Well, my all-clad cookware _stays_ put regardless.