Ok, you sound like the kind of person that always wants to be right, so let's agree to disagree. I am a problem solver by nature and if I see a problem, I look for innovative solutions to that problem.
Ok, then let me tell you why your solution is flawed
a) even if you use a contactless payment the groceries would already have been touched by the merchant
b) the virtual goods you claim some people buy and will not touch are probably 1/1000 of what is bought with cash right now in Wuhan, what can they even buy with cash that doesn't require touching? Examples?
c) let's assume people in Wuhan and the rest of the area would switch to bitcoin, there are 50 million quarantine in the region if we take the capacity of the network at 400k transaction per day it means that 1% of them would be able to use it if we all choose to stop using bitcoin
d) there is, of course, the LN but it has a tiny flaw, you first need bitcoins, which you must purchase and you create a tx when you do so and there we're back at point c
e) there is no evidence right now of any transmission though money which can be easily avoided using gloves
So, your solution is maybe solving 1% of the problem which usually means the problem is NOT solved.
Bonus
f) have you considered how much much the virus would spread if 1 million people would go to the ATMs to buy
BTC and they all would be touching the same buttons?
I am also in the technology field and I love anything related to currencies, so shoot me if I want to find innovative ways to prevent further infection, if Bitcoin can help with that.
What is innovative in a contactless payment?
Bitcoin is not a magical thing that can solve and can be used in any situation, you have to accept that.
It was designed for something and it does those things wonderfully and flawlessly without it being promoted as the savior of everything that moves on this planet.
Also, you have to understand that this continuously push for bitcoin for everything is quite damaging for normal people outside this forum. Continuously hearing that bitcoin can do that can save that you can't live with bitcoin is making them thinking of some sort of snake oil.I've seen this in RL, normal people who don't spend half of their life talking about cryptos are really not buying this, on the contrary they will treat it with far more caution.
And on this forum, you're preaching to the choir anyway!!