@stef1
Thank for taking the time to read the article. Writing is one of those skills people should learn, even if they never write stories, by learning proper ways to write gives us the ability to express our opinions, and express ideas clearly. Before the modern area people wrote to each other in letters, and because there were no instant messaging system, people had to learn the fundamentals of writing, it is for this reason most of the old letters are beautifully written.
And that is cool about your son and friend, it is little things like that make the whole difference in the world, and now you have a memory that is priceless. Awesome.