Funny ha ha

Two "jokes" involving Americans:

A middle aged Chinese woman and a middle aged American woman both own houses.
The American woman: "Hooray! I've finally paid off my mortgage!"
The Chinese woman: "Hooray! I've finally saved enough to buy a house!"

An American travels to Kaifeng city. He is critical of everything: the buildings are too short, the roads are filled with potholes, the houses are in disrepair. Finally, a Chinese street vendor hears him complaining and gets annoyed.
"This city is five thousand years old!" he exclaims. "It was once the national capital of China!"
He points to the pot he is using to make his soup.
"This single pot has a longer history than your entire country! It hasn't been washed in over 300 years!"
The American maintained a shamed silence for the rest of his trip.

The funny thing is, I don't find either of these offensive at all, even though I think they're kinda supposed to be. On the contrary, I am intrigued by this 300 year old pot. Apparently Kaifeng actually is famous for soup prepared in never-washed pots. Sign me up!