its very frustrating that apple cant make this easy for parents. it gave me a headache trying to set my son’s phone, took me 2 days of trying everything that were suggested here, it finally worked for me and i can manage his phone/screen time from my phone.
this was the last thing i thought to give a try and worked for me.
- make sure your phone is up to date, even if it says your os is updated to 12 but right now it’s 12.1.1 update it.
- sign out from icloud, both your phone and your child’s phone. (back the phones up before signing out just to make sure you don’t lose anything)
*backing your phone up - settings>your name>icloud>icloud backup>back up now.
*signing out from icloud - settings>your name>sign out.
as soon as i signed back in, my son’s name showed up on my screen time app.
good luck!