Working as a doctor I learned all of the things that can happen to children. Illness that comes out of nowhere, genetic disorders that cause lifetime issues, psychological conditions that can tear families apart.
I am thankful for healthy children. A toddler that goes at 100% all day long and whose new found passion is harassing the cats. Teenagers who, for the most part (excluding the to be expected teenage angst) are happy, strong, athletic, and rarely ill. It is a blessing.