foreign language ] >> this waiter is from another province. [ speaking foreign language ] >> this is xu weiguo son. they are a dyed in the wool shanghainese family. they good out to dinner and they often face this problem. >> translator: most restaurants are like this now. >> the family live in the southwest of the city about 30 minutes drive from central shanghai. it's long been a shanghainese neighborhood but there's been a recent rise in new arrivals. ♪ ♪ [ speaking foreign language ] >> he and his wife both speak shanghainese in the home. they want their son to be aware of their identity as a shanghai native. [ speaking foreign language ] >> translator: if we don't use shanghainese, he will forget how to speak it. it's the culture of his birthplace. it's not that fewer people speak it now so much as that more people speak mandarin these days. >> translator: we shanghainese men are proud that we take on domestic responsibilities. men can cook. we can look after our families. we're the best in china at that. i want to teach that to my son. >> although the natives and wai di ren in shanghai a