You can, but unless they are being photographed with you, I prefer not. I want you to feel relaxed and comfortable and have fun. But I’ve seen too many situations where a friend or spouse is more of a hindrance than a help in the process. If you are concerned about your safety, you should know that I usually work with a female assistant who helps with the setup and lighting. Of course, if I’m photographing your child, I’d expect you to be present.