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

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

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

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.

Ive been pretending to be okay and acting as normal as possible, but Im actually completely heartbroken after a recent breakup. Its painful and really affecting me, to the point where I cant concentrate at work, Ive lost my appetite, I cant sleep, and It feels as if my whole world has been turned upside down. I loved him so much. He said so many cruel things to me and it made me realize he must not have loved me the way I loved him, or he wouldnt have said such horrible things. How do I handle the heartbreak and why cant I accept that he didnt love me and just forget about him?

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

Moreover, buff guys are often avoided for their narcissism.

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

What is the reason behind some people referring to themselves as "nice guys" instead of simply being nice?

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.

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

Yaoi

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

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

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.

How do you handle your mother-in-law after you heard her talking badly about you in the next room?

How do you see these below?

Visual-kei

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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“None of my business” is the common attitude.