Yes they do, because there is a difference between a clean, well regulated environment and a filthy, unregulated environment. The latter is far more likely to spread diseases and germs. China needs to fix its sanitation standards.
Problem is how much cleaniness is required?
Is your system better than what we have in Singapore?
I am so clean that I am afraid to eat outside home because I may get diarrhoea where others have no problem.
So always eating only home cooked may not exactly be the best.
Sometimes we have to venture out and get ourself some "herd immunity".
You can try scrubbing yourself clean, you will find there is no end to having your dead skin come off.
There are millions of benign viruses and bacteria living inside of us and on our skin.
Some bacteria like Lactobacillus are needed by our digestion system.
On further investigation, you will realized we need bacteria.
Welcome to the real world.
What cleaniness to achieve is up to the community, not dictated by outsiders.
See the Indians, they can even drink from the Ganges River, where foreigners will have diarrhoea just visiting the country.
And Cow Cola is a favorite drink.
We can laugh all we want, but do we have the right to tell them off in their face?
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