It really depends on the company. Japanese culture is difficult to nail down. There are a lot of stereotypes and a lot of people think that they understand Japanese culture, but there’s such a wide range of companies and people.
There are some companies where you can’t go home until the boss does,and others that it it doesn’t matter. Some of the companies that I worked for or knew about then, the bosses were fairly quick to leave.
Japanese actually get more holidays than what’s typical in America. When I set up the Japan branch office for an American company, the VP of HR asked me which of the Japanese holidays we needed to give the employees off and which we didn’t, and I told them all of them. There were more than 20 paid holidays and annual leave was similar to the US.
There’s some people who never take annual leave, but there are others who take all of their days off.
The lifetime employment thing is pretty much only for brand name companies. Small and medium size companies don’t necessarily have that. It is true that people don’t change jobs as much, but unemployment is fairly low.
Pretty much all of Japan shuts down for a week at New Year’s, and a lot of of Japanese gets 3 to 5 days off in summer at Obon. The disadvantage of having these as paid holidays is that airplane tickets and such become insanely expensive. Lightly, more companies are just giving employees three days for summer vacation that you can use when you would like to.
It is kind of rare for foreigners to become really integrated in Japanese companies. I was kind of an exception, in the three Japanese companies that I worked for.
When I was working for corporate Japan, in my industry, it still was the case that mostly it was males in the manager level.
For the most part, women are underemployed. Raising kids takes a lot more parental time and often the husband will have the better pain job so women will tend to work part-time jobs.
Japanese work culture can also be more cohesive, and people can have strong connections with their coworkers.
I got out of corporate Japan and now I’m teaching, so I’m not sure how much things have changed in the last 14 years.