I use a sea salt grinder to lightly salt things when cooking. Can't afford to eat out too often so cooking is my normal routine.
Other people, especially older people, do pour salt on pretty much all meals. Especially with older people who tend to be able to taste things less strongly so their normal response is to add even more salt. And then they wonder why they have high blood pressure, etc.
You mentioned iodine but that's usually an additive in table salt, not sure how many people eat table salt vs other types of salt... me personally I've been using sea salt for years & that type usually does not have iodine.
For bonus points watch the last episode of Doom Patrol. Also featuring Brendan Fraser! (well, at least his voice)