Exactly, and if the kid try to reach out to the parents, it's "Sigh... You really can't do anything without me... You're worthless..."No, it absolutely is that simple. He doesn't actually care about hearing from Kouichi, but it is a very common remark used by abusers towards their adult children. It's most commonly seen in mothers as a guilt trip.
"I gave birth to you and raised you for 18 years and you don't even have the decency to call every once in awhile? What kind of child are you? I raised you better than that."
It's all about maintaining control over their kids and ensuring their life will never be their own, but rather an extension of the parent's.
Toxic way to always keep your kid with an inferiority complex and have control over them.