In the old days of 5 days a week in office, people would only grab a coffee or snack/lunch once or twice a week.

In the new world, with people coming into the office twice/thrice a week, they now grab coffee/lunch every office day as a treat, with the extra costs being offset by less spent on transport.

Also, this is just another step in the wrong direction climate wise. Aren't we meant to be reducing transport and our carbon footprint? Maybe first focus on improving public transport before making statements such as these that will inevitably lead to more vehicle traffic and congestion onto our roads.