Well, while some of the quarantine measures might seem excessive (and at thje same time ineffective, it seems), cancelling completely unnecessary sporting event

Well, while some of the quarantine measures might seem excessive (and at thje same time ineffective, it seems), cancelling completely unnecessary sporting events or trade fairs certainly is a good idea if it can even slightly slow down the growth of new cases. The point people often miss is that officials (at least in Germany) are not concerned with a major decimation of the population. But they are concerned that the high rate of contagion this virus seems to have combined with the high percentage of cases requiring hospitalization (even if its only 10% of the cases) would completely overwhelm the health care system. Mind you, there is at the same time a influenza epidemic (like every year) that is already taxing the resources.