1. Time pressure: office workers usually have work and life arrangements every day and need to complete various tasks in a limited time. Walking the dog for a long time may conflict with work and other affairs, resulting in increased time pressure.

2. Energy consumption: Walking the dog for a long time requires a certain amount of physical strength and energy. Taking time to walk the dog after work may make people feel very tired and affect work efficiency and mental state. Especially in the case of high work intensity or long working hours, walking the dog may make office workers feel more tired.

3. Financial burden: Keeping a dog needs to bear related expenses, including food, medical care, toys and so on. For some office workers with limited economic conditions, walking the dog for a long time may increase the economic burden and lead to increased economic pressure.

4. Social restrictions: Walking the dog requires spending a certain amount of time outdoors, which may limit the time for office workers to socialize with others. Especially on weekdays or weekends, office workers may be reluctant to give up their rest or walk their dogs with others, resulting in limited social activities.

To sum up, walking the dog for a long time may become a burden for office workers, because it may conflict with work, time management, energy and economy. But for people who love dogs, owning a dog can also bring fun and companionship, so whether it becomes a burden depends on personal circumstances and values.