The individual’s ability to support themselves is a problem. The answer to that, both in personal or societal crisis in the short term is personal savings and stockpiling of emergency supplies. These are both measures that are currently elective and either ignored or scorned by the majority.
If you say to people “You need 3 months of wages in an emergency account” then most will baulk at that, cite financial incapacity, and go straight back to wasting their money on shit. If you talk about prepping, even right now in the middle of a pandemic, people treat you like you’re literally insane. Clearly there are attitudinal issues that are discouraging prudent behaviour.
People’s ability to work, shop, etc. remotely is clearly important here. If you can do what you need to do without stepping out of your house for a month then executing a full and compulsory quarantine becomes a non-issue.
Protocols for rationing clearly need to be put in place. Everyone has to be guaranteed a minimum survival ration, and if the state isn’t prepared/or shouldn’t (economic rationales) stockpile for that then they will have to ensure that private enterprise picks up the slack.
If an activity is critical and cannot be performed remotely then it must be segmented, physically and/or by labour force. Sites and shifts must limit or preclude interaction.
Another serious problem is supply lines and Just In Time business practices. Supply and JIT issues mean you either have to keep your borders open for goods, or you have to sit on a significant stockpile of them. Panic buying and JIT have caused utter chaos here.
At the level of government it has become starkly apparent that domestic manufacturing and stockpiling of essential supplies has been neglected. Chinese supply has been demonstrated to be both an economic and strategic risk. Every country will have to significantly diversity supply and to ensure domestic production and stockpiling after this.
I would argue that at the very least protocols and best practices are something that could be formulated for individuals, businesses, and government. It is clear that many have never considered this particular situation, and had no idea what to do, when to do it, etc. IME, when it comes to dealing with people being able to say “Do this” is superior for 80-90% of them in preference to expecting them to show any independent thought or initiative (even in a situation like this, which has the potential for ruin for themselves and their families on a number fronts. People just stand there like deer in the headlights).
Ultimately the solution here is inculcating personal responsibility and capability. The best armour against any crisis would be to inculcate a responsible and capable mindset in as many of the population as possible. Frankly, this entire situation is beginning to scream instructional game to me. Make a fun game and you won’t need to coerce people into learning how to take prudent action off their own bat.