I say it probably 10 times a year. When I cook the food is typically already salted, and I unfortunately eat more processed food than I care to admit, which is usually already high sodium, but still in occasion I need a salt shaker.
It happens once in a while at my MIL’s, although for the most part she cooks with plenty of salt. Once in a while at a restaurant. If my parents are visiting they need everything low salt for their BP concerns, so we cook low salt, and I add salt to my dish. I also sometimes add salt to my franchise fries at fast food. I purposely buy some things low sodium so I can add my table salt that has iodine.