1/ You do that when you get the idea that they have grown smart enough and sneaking and doing it anyway on their friends' phones.
2/ Apple phones are good and hard to hack (at least by a regular kid).
3/ Yes. Plus a reward/punishment system for additional/curtailed hours on completion of chores.
I personally have a slightly different approach.
1/ I have given them Kindle as replacement devices (they also have jailed phones) and socially engineered them to make them feel superior about that. I've also given them some RPi to play with (to practically apply the things they read and learn from the books on Kindle).
This way, they don't take the phone as a forbidden fruit (since they already have it).
2/ I have created a normal user on Android phones with Microsoft ecosystem (I have a O360 family subscription) so, apart from the regular firewall stuff, it also logs everything my kids do on the phone and reports to me. Occassionally I go through the complete logs in their phones, to see if they tried to bypass their user profiles and do something funny.
However, it's important to make them realise that all this is done for their own good. Plus I make sure not to interfere in everything they do. It's ok to make mistakes as long as I can make sure it's reversible. Otherwise I've seen deep rooted resentment in some other kids. For example, their map locations sync to me in real time. I make sure they understand that this is for their own convenience (kids don't care about safety so no point in highlighting that) like arranging an Uber if they need one or to give them directions. That way, they don't take it as spying on them and are completely comfortable with sharing their live location with me. On the contrary, they take it as their parent (me) taking care of them and are actually pretty proud about it.
3/ I avoid negative feedback loops. I don't say you can use the phone only for 2 hours daily. Rather I say, you can use the phone as long as you want but only after you finish your daily checklist. Chores/Class tasks etc. It's works pretty well.
1/ You do that when you get the idea that they have grown smart enough and sneaking and doing it anyway on their friends' phones. 2/ Apple phones are good and hard to hack (at least by a regular kid). 3/ Yes. Plus a reward/punishment system for additional/curtailed hours on completion of chores.
I personally have a slightly different approach.
1/ I have given them Kindle as replacement devices (they also have jailed phones) and socially engineered them to make them feel superior about that. I've also given them some RPi to play with (to practically apply the things they read and learn from the books on Kindle).
This way, they don't take the phone as a forbidden fruit (since they already have it).
2/ I have created a normal user on Android phones with Microsoft ecosystem (I have a O360 family subscription) so, apart from the regular firewall stuff, it also logs everything my kids do on the phone and reports to me. Occassionally I go through the complete logs in their phones, to see if they tried to bypass their user profiles and do something funny.
However, it's important to make them realise that all this is done for their own good. Plus I make sure not to interfere in everything they do. It's ok to make mistakes as long as I can make sure it's reversible. Otherwise I've seen deep rooted resentment in some other kids. For example, their map locations sync to me in real time. I make sure they understand that this is for their own convenience (kids don't care about safety so no point in highlighting that) like arranging an Uber if they need one or to give them directions. That way, they don't take it as spying on them and are completely comfortable with sharing their live location with me. On the contrary, they take it as their parent (me) taking care of them and are actually pretty proud about it.
3/ I avoid negative feedback loops. I don't say you can use the phone only for 2 hours daily. Rather I say, you can use the phone as long as you want but only after you finish your daily checklist. Chores/Class tasks etc. It's works pretty well.