People don't like being locked up in their homes ad infinitum. My observations are that many remote workers use their newfound freedom from the office and face-to-face meetings by doing their jobs from various nice locations other than home. And why not - many warm and sunny countries can offer you somewhere nice to stay for a fraction of the cost of a UK railway pass. Savings from commuting, multiple sets of business attire and lunches outside add up to a significant sum over a few monts - and many choose to spend it on a trip somewhere nice to break the routine. So, that's one thing that makes up for some of the reduction in business travel (which, as rightly mentioned, is quite often more of a jolly at the company's expense than a strict necessity in order to get the job done).