Via this article
in the BBC we learn that Chinese parents with dead children can’t publicly mourn them without government permission, which isn’t easy to get:
Parents who lost their children in China's earthquake fear they will not be allowed to properly commemorate the disaster's first anniversary.
Many parents want to return to the site of the schools in Sichuan that killed their children when they collapsed.
But the authorities have previously stopped them going to the schools on sensitive occasions, and are said to be monitoring the parents ahead of 12 May.
China has not said how many children were among the 90,000 dead and missing.
The government has admitted that nearly 14,000 schools - some of them poorly or hastily built - were damaged in the magnitude-8 earthquake.
The parents have valid concerns:
[One mother] is not hopeful that she will be allowed to get to the collapsed school site, in the city of Dujiangyan in northern Sichuan Province.
"On every occasion parents have wanted to pay their respects to their children, the whole school and nearby area have been sealed off," she said.
Other parents told the BBC a similar story.
Zhou Siqiang, whose daughter died at the Juyuan school, said parents have been prevented from visiting the site on a number of occasions.
He said they were stopped from going to the site on last month's Tomb Sweeping Day, when Chinese people traditionally visit family graves.
The local government and police didn’t comment on any of these claims. This demonstrates yet again why China’s government is much worse than America’s: our
authority figures are smart enough to cite public safety concerns when prohibiting mass gatherings.