How conservative the Japanese people really is? And the government?

I’ve heard it’s always the male side that is expected to take a move in some countries. It’s not the case in Japan.

Visual-kei

I sometimes feel people from the West are obsessed with those “gender” and “sex” things too much. Let’s think about something else sometimes. It’s unhealthy.

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“None of my business” is the common attitude.

How do you see these below?

This is a very vague question. But considering the asker’s comment on Mr. Nakajima’s answer, your interest seems to be in sex-related matters (I don’t think it’s the only indicator of conservative/ progressive, though).

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We don’t instantly tie it with sex when a father and his very young daughter are taking a bath together.

They don’t tease or beat up cross-dressed people on the road.

It’s very common for a girl/ woman to ask a boy/ man to be her boyfriend.

What led Megan to marry into the Royal Family despite her successful acting career in Hollywood?

They were very similar to the bromance of today but accompanied by sexual intercourse.

They don’t have the value that “guys must be macho.”

Yaoi

Why do people hate fat people so much, even people who aren't exactly supermodels themselves? It seems like such a deep, passionate hatred, like they're offended by fat people just existing. Fat people didn't do anything to them, so why hate them?

They don’t have the so-called “couple culture” seen in many Western countries.

Moreover, buff guys are often avoided for their narcissism.

In the old era, gay relationships were very common and were even praised among the privileged social classes, such as Samurai and monks.

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They don’t bring around their mates everywhere, which means they don’t worry about being single, gay, or whatever because no one cares about whom others are having/ not having sex with.