Do many elderly perons in cities live with their children?

In the countryside , most elderly people live with their married children. There is a popular saying :"Three generations living under one roof". In cities, men commonly retire at the age of 60, and women at 55. The old age person amounts to 75% of one's pre-retirement wage and provides independence and security. But urban senior citizens are welcome in the homes of their children for their baby-sitting service and household help.Spending their remaining years in happiness , they hekp with the housework ,look after grandchildren ,and take up a hobby like feeding pet birds or dogs,,or going to teahouse to sip tea and enjoy endless conversation.