With Japan, things are not always as they appear. There appearances are everything. They will do everything to look clean, but it doesn't mean they really are. Even the masks are a bit of a show. There is, of course, truth behind it. They don't fake when they wash themselves and clean things up, and the masks really protect others, but don't assume they all behave the same way when no one is watching.

And while they tend to touch each other less then westerners they are also packed, and often go to public places in large groups.

For the elders, I don't know. The traditional way is to have everyone in the same house: children, parents, and grandparents. But the modern way leaves the elders by themselves. The traditional way would leave them very exposed, but I don't know how many are living like that. It is also more common for children to sleep with their parents.

And while the Japanese are generally more obedient and disciplined than we are, I am not entirely convinced about their faith in the government.

All and all, I think your points are mostly valid. But for me, it isn't as clear cut.