From Xinhua News Agency (link):
Instead of exercising in parks or shopping in wet markets, some senior parents in Yangpu District in Shanghai have a different routine every morning – they line up at a bus terminal so that their children can sleep longer and still get a bus seat to school.
Some call it coddling children in one-child families, some say it makes young people less independent. Others say Chinese parents naturally want to help their children and are willing to sacrifice because of long commutes on crowded buses and a hectic life.
Some sociologists say it results from poor public transport, but should not be encouraged.