I can suggest some possible reasons why someone might choose to wait for the bus outside:
Fresh Air and Nature: Waiting outside provides an opportunity to get some fresh air and enjoy the surroundings, which can be refreshing and more pleasant than staying indoors.
Avoiding Crowds: Bus stops at workplaces may get crowded during peak hours, and some people might prefer to avoid the congestion by waiting outside.
Flexible Scheduling: Your coworker might have personal preferences or habits that align better with waiting outside.
Social Interactions: Waiting outside could offer opportunities to meet and interact with other people, which can be a way to socialize or network.
Personal Comfort: Waiting at a bus stop outside might be more comfortable for your coworker due to temperature preferences, lighting, or other personal reasons.
Scenic Views: If the bus stop is located in a more picturesque or appealing area outside the workplace, your coworker might prefer to enjoy the view while waiting.
It's essential to remember that individual preferences can vary greatly, and there could be many other reasons why your coworker chooses to wait for the bus outside. The best way to find out the specific reason would be to ask your coworker directly if they feel comfortable discussing it.