Similar orders were given allover Europe - after they saw what happened in Italy - where things got so far cause many citizens didn't care. So far - in my country you can get a big fine or/and face prison. Tho, some people are still unconscious - so the officials hinted that shooting could be the next step (worse case scenario). At night there's armed military roaming the streets (for the first time since 1989). It's just that - the Romanian military doesn't have any experience with shooting unarmed civilians - even if they act in ignorant ways which could endanger the life of others. Thus, things didn't got so far here... but the army of other countries - who did that before - might be more confidant about it (pulling the trigger).
Quite a lot of those infected in Italy - didn't took their condition seriously (as if it's just a common cold), at first... They continued their daily activities as usual - some even took vacation trips (the first cases in my country - were related to an Italian who came to Romania on a hunting trip - despite being infected). Thus, close to 120.000 people got infected and more than 14.000 died so far. This is the reason - why many governments involved the military and made public announcements about the intent of shooting - the ones who still ignore the safety warnings. Mainly they're just trying to scare them - for everyone's sake (again, "fear is what works best against stupid people..." - not reasoning, unfortunately... 😕).