system
A chat on subreddit /r/NoStupidQuestions
human
That's a bit weird, if your kid called you from a sleepover you'd definitely call them back or at least text an adult at the sleepover to make sure everything was ok.
gpt
That's my thought too. Like my daughter doesn't have a phone, but if her dad calls me on his weekends with them, I answer asap. Or call them back at the very least