I take the phones of both my 16 and 17 year olds. They’re very grateful for the support I give them by ensuring they have downtime. I adhere to the same rules myself. They have my screen time password and I have control of theirs. All of our phones switch off by 10 PM and certainly no phones in bedrooms. It’s too tempting.
By tempting I mean too easy for them to lose precious sleep and they’re far more vulnerable to doing stupid things alone at night.
I’ve read vast amounts of research by psychologists, and removing phones at night is the number 1 recommendation.
Aa for checking her phone, I would recommend that you use this to develop your connection. I would say, ‘Hey, I noticed you’ve put a password on your phone. Is there any particular reason?’
Fall back on the research - I cover the key topics in my podcast - Go through the issues with sexting and sextortion on Snapchat, talking with strangers, drugs, etc, Say ‘I love you and I’m not trying to control you but it would be neglectful of me not to have honest conversations about the very real dangers.’
tell her your key objective is to help her develop healthy habits around her phone, and also to make sure she doesn’t become lured into something that could be life hanging or scarring. Watch her face carefully. If you suspect she has been doing something she knows she shouldn’t don’t shame her. Let her know that you will stand by her no matter what, but she needs to trust you for you to be able to help her.
Remember, these platforms (Meta, Snapchat) are currently battling numerous legal cases where they are being charged with failing to protect minors from real harm. You are being a great mum for taking real care and interest in what she’s doing.