I live in Osaka, Japan. As of February 28th, a few things have changed. Large gatherings like my end-of-year work party have been canceled. Other events like graduations are either being scaled way down, or scrapped altogether. Pro sports are being canceled or played in empty stadiums.
Yesterday the Prime Minister announced that schools would close Monday, extending into the spring break. In Japan, the new school year stars in April so this is essentially a month long spring break. Abe said that businesses would be compensated if their workers had to take time off, but that is only lip service, and nothing will change in Japan's work culture. Nursery schools for the very young will stay open.
I am fortunate that my wife stays home, so she can watch the kids. Some of my friends are in much more difficult situations with elementary school aged kids. I, of course, still have to go to work because the hamster wheel can never stop spinning.
As for supplies, masks are impossible to find anywhere. I have a bit of stock at home but I doubt their effectiveness anyway. I keep a supply of bottled water at home in case of earthquakes and typhoons, and my farming means I always have food, but depending on how things develop over the next week, I might go stock up some more.
The system of tracking people in Japan is pretty good, and my confidence in local government remains high. The next big question is the Olympics, which would be a brutal punch to an already weakening economy in Japan.