I am disgusted at the tones of these posts.  I know this woman, she is a friend. She is a very kind and gentle person, who loves her baby and is not litigious or hysterical in nature at all.  This was traumatizing. It is 2017; an airplane parked at the gate should be able to keep it's temperatures comfortable - let alone not dangerous. We pay for many things when we booked a ticket; as my friend did; and one of those things is a liveable environment that won't send a small baby into heatstroke. Babies overheat very easy. I was told when we had our infant that the risk of overheating was much higher than him ever being too cold. This was United's fault and it's terrible that a Mom had to watch her child have a health emergency while people argued for 30 minute about stairs. The fact that other passengers were yelling too should speak to her case.  Instead of Mom-shaming a rational, normal decision, let's stand with her and say that the airlines need to start treating people like people.