many modern trains do have air conditioning in the driver's cabin. The inclusion of air conditioning in train cabins, including the driver's cabin, is becoming more common in new trains and those that undergo significant refurbishment.
Air conditioning is essential in the driver's cabin to maintain a comfortable and safe environment for the train operator, especially during hot or extreme weather conditions. It helps regulate the temperature, reduce humidity, and ensure the driver's focus and alertness during long journeys. However, the availability of air conditioning can vary depending on the train type, manufacturer, and the region/country's specific requirements.
Keep in mind that advancements in train technology and cabin features may have occurred , so it's always a good idea to check with the specific train operator or manufacturer for the most up-to-date information on the equipment and amenities provided in the driver's cabin of a particular train.