The World Health Organisation (WHO) have made it very clear that this virus is an infection driven by humans spending time indoors (yes indoors) in close proximity to each other. A sub tropical swimming pool, soft play, restaurant plaze, sports centre, a spa....germ factories at the best of times!?
Additionally advice suggests that those travelling to large public 'indoor' gatherings from wider areas and then returning to their own communities increase the likelihood of spreading infection several fold. Is that sensible?
I understand the disappointment, these threads read very much like a catalogue of people trying to reassure each other, to justify reasons to not cancel breaks. And, yes, you are well within your rights to do so until such a time that the authorities make a decision that you can't.
My point being that if we are all cautious now we may not need to get to that stage. And, in any case, surely the focus should be on protecting family and community just now. This thing is real, events in Italy are real. A casual reflection shaped by what you'd like to hear makes little sense.
I do think this may be taken out of our hands anyway. Looking at the timelines, it seems the focus on the next stage of managing this thing is set to coincide with the Easter break in two weeks time. There is little doubt that these community driven places, populated by families from far and wide will be a priority to monitor. We'll see.