Dd1 is coming up to 18 in May and dd2 is 16. I have never formally restricted their phone use other than reminding them they've been on too long and phones are kept downstairs in the kitchen overnight.
However I have noticed that dd1 is on her phone more than I would like. She's away at boarding school during term time, school wifi turns off in the evening, not exactly sure what time. But at home she's a night owl and I will often find her in the kitchen late at night drinking tea and watching Netflix on her phone.
I have recently starting restricting time on phone on dd3's phone (age 12) and am wondering now whether to do the same for the older two. It seems a bit odd to start this now though as dd1 is approaching 18. But on the other hand, she lives at home (taking a year off before uni so will be at home) and I pay her phone bill.
What do you do with older teens?