The 9-year-old towhead leaned into his airplane window watching the scurry of baggage handlers below. His mom sat in the middle as I approached and asked if the aisle seat was available. She quickly nodded yes with a smile, and then asked me an unexpected question: “Excuse me, my son has a severe peanut allergy. Are you planning to eat nuts on the flight?” I assured her I wasn’t and sat beside her, asking her to tell me more about her son. She explained that the airline had promised to serve no