I don't profess to be an expert in Chinese culinary - etiquette but I can't
recall ever seeing a person use two sets of chopsticks. Never really entered
my mind about hygiene.

I guess as a foreigner you could have 10 sets and natives would just think its
some kind of foreigner "thing", not that you are an elitist.

But a Chinese person visiting US and seeing people eating food with their
hands instead of tools could be viewed as barbaric.