Walking behind people: you are walking into a cloud of their breath, clothing, footsteps as they create a vortex that wafts back to you. I've been aware of this for years, it's not some fear this virus has brought on.
Walking towards people: move away to the side. I believe walking behind is more iffy.
Bringing shopping home: do we wipe every item? Is that an over-the-top reaction?
The quandary over masks: wear them when we're sick or wear them for prevention? And flimsy dust masks don't work.
Cash: today I read that the virus could mean the end of cash since cash is riddled with germs. I love cash, it's untraceable used by ordinary people like myself.
Schools: if kept open, how sure can the public be that cleaners know their job well enough to clean well and aren't just skimming.
Washing clothes: read on a forum (re the virus) a post from a retired lady sharing an extensive list on how to wash clothes, including using ammonia and all kinds of chemicals. Overkill in my opinion. Where do we stop? Imagine a family of 6? Washing clothes every time you go out? And if they're "good" clothes, do you take them to the dry cleaner or hand wash every time? because my generation eg wears wool in winter. Impossible, and a huge time waster.
Guns: on the same forum another elderly lady said that although she was against guns, she was following her husband and sons in stocking more guns and preparing for whatever may happen and preparing for possible invasion of her home because of her product stocks.
Medication: I advise being extremely careful but in another way - don't fall, don't injure yourself, don't get skin infections, in other words don't end up in hospital for any reason. A severely asthmatic friend couldn't find Ventolin the other day. That is seriously scary. A med I'm on couldn't be delivered but eventually was.
From my perspective, we all need to neither under- nor over-react. A sensible common sense reaction is called for.