Bit hard when its the dad thats non-existant in the kids life buying them a iphone @ 12. Restrict the usage of that and see how well your relationship with your kid holds up.

Had this happen to us, my partners kids. Its a subtle attempt to destabilize and subvert her authority as parent figure even though old mate isn't even around, hasn't been for years and still is an abusive S*t. We got forced to buy a iphone in order to put parent restrictions on. Its shits as. I hate apple. Company does bulk crap that enables abusers and does piss all to prevent it or be like hey...maybe this is a ethically shit thing to implement. Maybe its gonna cause a whole host of people grief. Don't even get me started on apple air tags.