Oh man, “mirroring everything real-time” sounds like my personal nightmare back in the day! I totally get wanting to keep your kid safe online, that’s super valid.
From a kid’s perspective, having someone see everything you’re doing, minute by minute, feels incredibly suffocating and really hard to trust. Parents definitely try apps for things like screen time or content filters, but trying to literally mirror the screen often just makes us go super secret squirrel mode. We’d just find ways around it or get a second burner phone, honestly.
What actually worked for me (and kept me from getting into too much trouble) was knowing my parents could check my phone sometimes, combined with clear rules and talking things out. Not that I’m saying don’t monitor, but full-on mirroring might give you more headaches than peace of mind in the long run.