Tightening the restrictions

because of the Covid19 virus is something none of us wanted but they have just happened. What is more there will be further restrictions if people do not do the right thing.
We are still allowing travellers "stranded" overseas to return. "Essential" travellers are still allowed to go backwards and forwards. I have issues with both these things. I also have issues with the young woman, supposedly a "mature age" student, who went to college knowing she had the virus but thinking she was "not contagious" because she was only showing mild symptoms. 
Let me start with the "stranded" travellers. There are some who would not have been able to return quickly. They were contracted to do important work and some were in the middle of major projects.  I know people in that position. The only two who had families with them sent their families home immediately they realised there might be a problem. That was as Wuhan started to shut down right at the beginning. 
Yes, I suppose their work made them more aware of these things but their families went home. It was the responsible thing to do. All the other non-essential aid workers I know have now gone home. They have been there some time. The projects they were working on are on hold for now. They will go back later if they can.
But other people "finished their holiday" and then found themselves stuck. Still others were "not ready" to leave or "thought it was a fuss about nothing" and more. Allowing them to return now may be what is needed but they should be paying for their flights and quarantine in hotels and not arguing about it. What is more isolation has to mean isolation - and I doubt a fortnight is long enough.
Then we come to the "essential" travellers. Most of these are transport workers moving goods around the country. One of them has been the cause of a new outbreak in another state. They are a group who are not only vulnerable but also a group who, apart from front line personnel, are most likely to pass the virus on if they get it. Their lifestyle makes that inevitable.
In this state however it would be possible to bring in most goods by rail...at most two or three people instead of a hundred or more on the roads. Right now the "double handling" argument so loved by the transport industry in their efforts to preserve jobs at such an immense cost needs to be stopped. 
I can imagine the reaction. I am worried about the economic situation but we are talking about the lives of everyone, not just a few people.
And yes, I would "throw the book" at the rule breakers, those who refuse to do the right thing, and those who try to bend the rules to suit themselves.
Before someone comments that "you don't know what it is like" let me point out that I know people who have not been able to be there for a dying parent, people who have not been able to fly in for the funeral of a parent, people who want to visit family before it is "too late". I know other people who had family occasions planned or cannot visit a child in hospital or who have missed other major or significant occasions. All of them have done the right thing. 
In some cases this would not have been necessary if those who did the wrong thing had done the right thing.