Let's compare Persona 4 and 5 when it comes to parents that don't talk about you:
In Persona 4, you're with your uncle and his daughter. It's 2008, before LINE it's a thing, and you live in a peaceful town with less than 2000 inhabitants were the worst that can happen to you is eating Yukiko's and Chie's infamous curry. There are a couple of murders, but after mid april you frustrate everyone until a culprit is caught. Since they're abroad, the cost of calling must be expensive as fuck.
So yeah, they're not the best parents all around but, you know, they may have talked with Dojima or something and it's kept off-screen.
Now in Persona 5.
You have a criminal record and the only school that accepts you is in Tokyo. Your caretaker is a person they don't really know. Once month after you start going to Shujin, the school appears on mainstream media because a teacher has brought himself in to the police and confessed sexual harrasment, sexual assault and student abussing in general.
Two or three months after that a mafia boss gives himself in to the police, confesses that he's been getting a lot of money by blackmailing high school students from Tokyo. It goes to mainstream media again.
And then you give yourself in to the Police, say that you are the leader of the PT and testify in a case that involves the Prime Minister of Japan. Yo go to juvie for almost 2 months. During that time, your Confidants (which include but are not limited to an elected politician and a journalist from a prestigious newspaper) start doing their best so you are free from juvenile jail.
It's 2016-17, an era where LINE is a thing. They're living in Japan. You're in a much tougher situation. You don't get a single message from them. I dunno. That's terrible parenting.
Coffee family is best family. Futaba better hack my birth certificate.