Hello again. I know, I know a lot of these thread about grammar but I have to talk about it. One good example of why grammar marks (like .,?!:; etc...) are important: "We are going out to eat, Grandma." That is how it should be. This is a wrong example of what grammar is: "We are going out to eat Grandma." See what a little "useless" comma can do? So for your grandparents, use grammar.