I began by copy editing my brother’s book and then a Cavapoo book, as well as a book for a Medium friend. All of it was voluntary with just acknowledgment. I make sure the text is correct in terms of spelling, grammar, punctuation, terminology, semantics and formatting.
So back to worrying, I am thinking you might enjoy a story I wrote about it. I think you are far beyond where I was when I had my children, but it still might interest you. We seem to have the same fears. If you have a chance to read this, please let me know your thoughts.