Right. I remember before my stepkids had cell phones and they wanted to call their friends or tell friends to call them after 9 p.m. on our house phone, I said, "It's rude to call someone after 9 p.m. and no one better be calling our house after 9 p.m.." Eye roll from kids, "Why, we don't go to bed until 10 p.m. It's not fair!" Then the explanation from other parents that it's acceptable in this (that) day and age. Um, not in my house, sorry. I stuck with it until they had their cell phones. I still didn't like it much but they had their phones with them in their rooms, so...
My husband is the unfortunate recipient of group text messages with his kids, who are now all adults (I explained to leave me out of this loop). He gets caught in the crossfire between the four of them at inopportune moments and he mildly gripes about it. And when his phone goes off in at midnight by one of them responding to the group text (one kid lives in Texas), it wakes me up and not him, LOL.