Or, alternatively, Jack's school is closed so Jack's parents who have to go to work and can't find alternative childcare ask grandpa to help out. Now grandpa has it and spreads accordingly. Or maybe Jack's a but older so whilst the parents are out he goes out to hang out with his friends anyway.
Another Asian perspective on this...
I'm in Taiwan, just across the Taiwan Strait from where it all started. Schools here had an extra two weeks holiday after Chinese New Year but are now fully open and running with absolutely no issues. I was at a high school last week (I teach and choreograph for pre-professional students part time) and was pleasantly surprised at how normal it was. I was expecting face masks to be compulsory but not so. In fact, probably 25% were not wearing them.
Regarding public transport, ridership on the Taipei MRT is noticeably down, especially off-peak. But there's no move to cut services. The view is that it's better to space people out than have them crowding into fewer trains. Refunds have been given on unused portions of monthly travelcards for those now working from home.
Flights have been decimated. Cathay Pacific used to have almost hourly flights to Hong Kong. Now it's just one or two a day. Apparently the airport is a ghost town.
Big theatres are closed and many big public events are cancelled, but there's no government ban on them. Organisers are doing risk assessments and being responsible. Smaller 300 or so seat theatres are open. Indeed, I was at a performance yesterday, although part of the deal was that face masks were compulsory, door staff were armed with thermometers and hand sanitizers, and we had to write names and phone numbers on ticket stubs.
We have zero panic buying too. Not even for toilet tissue!
What is especially striking here is how open the government are. Daily news briefings have been the norm for weeks with quite a lot of detail given about new cases (as at this morning we were still in the 50s, with just a few at most each day, which helps). They have even put on-line a list of which hospitals are doing COVID-19 tests and which are catering for cases. The government is also trusted. It probably helps that the vice-president is an epidemiologist by training and was formerly vice president of the Taiwan's premier research institution. Of course, Taiwan has been here before with SARS, so it was also in part a case of simply re-activating existing plans.
What people here don't get is how badly (as they see it) Europe and the US is handling it, and why they didn't pick up on the seriousness of it earlier. They think it's absolutely nuts that borders remain open and that there's not even a health declaration or temperature check on arrival. It's hard to argue with them.
The bad news for me is that I have to leave by mid-April (I'm on a 90-day visa-free stay with no extensions allowed). Should I fill my suitcase with dried noodles and toilet tissue, I wonder.