like yeah there's some examples of hololive talking about family, or kobo about her ex, but the point being made wasn't "heh we talk about this and they don't" it was "we don't have to worry about talking about that" which, sorry if anyones in denial on that front, but hololive does, every person you've seen have their mom on in hololive probably went through several steps of managerial approval to do so, Kobo's manager probably shit the bed when Kobo talked about her ex, and just imagine the shitshow that would ensue if a JP girl did that. They have their moms on but notice how it's still kept a unicorn sanctuary and no ones ever had their dad on? closest thing might be Matsuri at one point having her littler brother on alongside her mom once.