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

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.

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

Infrared contact lens enables humans to see in dark - DW

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).

Visual-kei

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

Could the guys here tell me how their first experience with a trans woman was? Who was the lady to you? ( I mean girlfriend, one night stand, etc.) I just had my first experience recently and I would like to know about others?

“None of my business” is the common attitude.

Moreover, buff guys are often avoided for their narcissism.

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

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

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.

Yaoi

Why do people say "tall, dark, and handsome" when they actually mean "tall, white, and handsome"?

How do you see these below?

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.

What is the belief about the existence of past lives and memories? Do we have knowledge of our past lives at birth or does it come back to us gradually?

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.