Oh, what a wonderful time you're going to have introducing your children to working with "Mother Earth"! I always gardened with my now grown children but just got chickens last year. My most memorable moment with chickens was introducing my 5 year old granddaughter to them. She was thrilled! I always make sure there's an egg in the nesting box for her to get. When she fetched the first one, she looked up at me and said "Mamaw's, every day is a little bit like Easter, isn't it?" Kids say the best things! She comes and stays at least a week with me in the summer and she's in the garden first thing in the morning, still in her nightgown, and eats whatever she picks. Not unusual for her to have eggs and cucumbers for breakfast!
Love your coop, looks really nice and will serve you and your chickens well. Congratulations and enjoy this time with your children!