Final answer:
It's not recommended to compose text messages at any traffic light, but stopping at a red light is the only time it's remotely safe to consider it. Still, it is distracted driving and can be unlawful, and during emergencies like a woman in labor, texting is not a priority.
Step-by-step explanation:
Composing text messages while stopped at an intersection is not recommended, regardless of the color of the traffic light. However, if you are stopped at an intersection and not in active traffic flow, for example, when the traffic light is red, this is the only time when it is even remotely safe to consider using your mobile device, although it is not advised. Indeed, many regions have laws that prohibit the use of mobile devices while operating a vehicle, except for emergencies. It's important to mention that even while stopped, engaging with your phone can be a distraction and can prevent you from noticing when the light changes, which may cause traffic delays or accidents. Additionally, concerning a situation where a pregnant woman is about to deliver in your vehicle, safety and urgency are critical factors; in such a case, messaging should not be a priority over seeking immediate medical assistance.