The problem is that many of the symptoms of flu are the same as Covid-19 (they are both covid viruses, after all), so someone with symptoms is likely to have to self-isolate and quarantine themselves, whether they have covid-19 or the flu (or even just a common cold). We were "lucky" in that covid-19 hit here after the flu season had mainly ended. We do really need a testing system that can differentiate between covid and flu and the common cold, QUICKLY and reliably, ideally on the day of taking the test, before the next flu season hits, or there is going to be a lot of lost work time. The current drive-umpteen miles-to-a-test-centre, or wait until a kit is posted out to you and then wait while you post the results back, options are not really good enough. Every town and village of any reasonable size needs to have a testing facility that you can use on the day you first notice the symptoms, and can give you a result the same day.