I think if you check the label information about salt/sodium in your food cupboards and in your fridge you may be shocked at how much salt you are actually eating, even though you very rarely sprinkle salt onto your food yourself. - The food manufacturers usually add a lot more salt to food than you yourself would add. If you were making up a breakfast cereal from scratch yourself, it would probably not even occur to you to add salt to the bowl of cereal, but most breakfast cereal manufacturers add a lot of salt to it. - It's a very cheap ingredient for one thing. I'm sure you can think of other reasons too.
Most health advisers these days recommend that adults should eat no more than 6g a day of salt. That's 2.4g of sodium a day, because to convert sodium content to salt content you need to multiply by 2.5. And for children, because of their smaller size, the recommendation per day is less, in proportion to their size. Salt is especially harmful for babies. Babies should not be given food that contains any added salt at all.
Did you know that for people who are sensitive to salt, salt intake can cause weight gain? - You may be sensitive to salt and not know it. Most people who are sensitive to salt do not know that they are. Cutting down on salt and salty food can be a very easy, very fast, completely safe way to lose weight. - What's not to like? - Lose weight by eating less salt! - Go on! - Try it! - You have nothing to lose but your excess pounds!