It can depend on the job being done. For example, during board bringup, it can be convenient to be on site so I can plug in scope probes and stare at traces. I

It can depend on the job being done. For example, during board bringup, it can be convenient to be on site so I can plug in scope probes and stare at traces. It is also nice to occasionally have an opportunity to get lunch with colleagues. From these social interactions, one may learn things about your colleagues that may be helpful in future technical discussions and debates. It can also be an opportunity to learn about impending bad (or good) news that cannot be shared on a potentially recorded medium.