Many people have several rooms in their home that serve more than one purpose, and the dining room is often one of them if there is space for a table in the kitchen. Families are often rushed during meals, so they eat at the table nearest to the cooking area. This leaves the dining room free for the children to do their homework and their parents to use as an office space. While it might be convenient, it is often in the center of the home, so many modern telecommuters begin using the guest room as their work space.
Guests are relatively rare for many families as they do not have the time or energy to host guests on a constant basis, so converting this room to an office is often a good idea. While the dining room will have a nice large table for working, it is also in use when the children are home. Clearing off work materials every afternoon can become an issue, and important documents can be lost. This makes it less than ideal for working, and even the location can provide too many distractions.
Rooms where guests stay often have their own en suite bathroom, and that is another plus when it comes to creating a home office. The worker does not need to travel through the home when they need a break, and they can even get water for coffee or tea from their own sink. They can feel a glorious sense of quiet isolation as they perform their paid tasks, and they will be more likely to get their work done because the door can be closed.
Converting the guest room to office space might cause a few issues when an actual guest arrives, but arranging to take a day or two off can generally solve any possible problems. For those who need to continue working even with guests, the dining room might still be available.