The thing is OP - and others may not agree with me, but this is my view - when they’re little it’s soooo full on. You just crave moments of peace, nights without disturbance, head space, adult time, lie ins. You know everything about their lives, who they see, what they do, what they eat, what they like, who their friends are. Your worlds are entwined and it’s overwhelming at times.
But as they get older it changes - they go to secondary school, you don’t know their friends, they get secretive, they have phones, they have a whole life that you don’t really know about. And they lose interest in you. So rather than rushing out of school to tell you about their day, they dump their bag and head to their bedroom, with maybe a passing grunt. They reappear to ask you for a lift somewhere!
Then they start going out. You might not know what they’re doing, where they’re going, who they’re with, what they’re drinking, smoking, who they’re having sex with, and where!
Suddenly the idea of them disappearing for a weekend doesn’t seem so appealing . It becomes scary! And if they actually do feel like having a chat with you, you enjoy it, and make the most of it.