QUIZ BY STEPHANIE THURROTT If only parenting came with a manual... Sometimes, it seems like childhood is just a long stretch of concerns for parents. From kindergarten readiness to internet access to tattoos-eek!- what's a normal part of growing up? And when should parents consult an expert? Wendy Sue Swanson, MD, a pediatrician and spokeswoman for the American Academy of Pediatrics, helps us sort out how to handle some typical parenting concerns. FREAK OUT OR CHILL OUT? 42 FAL L 2018 IT DEPENDS. Language is complicated. There's receptive language, which is what your child understands, and expressive language, which is how your child communicates. Does your child understand some things you PHOTO BY GETTY IMAGES From first words to bed-wetting to teenage rebellion, parents fret about what's normal- and when to call an expert Q Your oldest child said "dada" at 12 months, but your youngest is 18 months old and doesn't say any recognizable words. Is it: Typical childhood development or a sign of a problem?