You know your child better than anyone. That is not the same as knowing the room they just walked into. Trouble usually starts as a game chat that sounds like a friend. Trust is the relationship. Settings are the locks. You need both. Character is not a firewall.

Parents get lost in twenty menus. These are the ones that change risk: lock screen, accounts, unknown callers, location, app permissions, downloads, lock-screen previews. Do them once. Check again when a new app appears. Tonight is enough.

The sticker password is for Wi-Fi, not the router’s settings page. Those are two different locks. Most houses never change the factory setup. This is the short pass: admin password, guest network, WPS off, firmware update, remote access off. Do it on a laptop, not the phone app. After this, the router stops being the weakest door.