I'd be interested in knowing more about what's made you worry you're becoming controlling, or if your DD has complained about your approach.
My DDs are in Y11 and Y7 so there are differences in the way tech is managed with each.
- check the messages/social media posts
Not for DD1 anymore although I would occasionally check group WhatsApp messages when she was younger.
DD2 doesn't have any social media, I occasionally look in on group messages but no more than about once a month, and often I'll just ask her if I can have a look through.
- No phone in the morning until all her jobs are done.
DD2 doesn't switch hers on until she's completely ready for school - that's her decision, nothing to do with me!
DD1 goes through phases of using her phone before she's ready, sometimes it's productive use e.g. Duolingo but she's realised non-productive use slows her down so she's stopped switching it on until after she's dressed etc.
- Has to finish her homework first.
No, not for either DD. School sets homework via an app so it's counterproductive to limit phone use then. Neither of them really watch TV so I see little harm in them coming home and relaxing for a bit on their phones before getting on with homework etc. DD2 doesn't tend to use her phone much unless it's to message friends whereas DD1 will partake in mindless scrolling through Instagram or get into chats with friends.
- No phones in the bedroom at night.
None of us has their phone in their room overnight. For sleepovers (obviously not at the moment), friends' phones, just like DDs' go on the landing to charge - they are freely available but temptation to spend all night taking photos of sleeping friends is reduced.
- Phone/TV bans as a means of punishment.
Not been relevant for either DD to date. Neither really watches TV and I'd only be likely to remove a phone if that was the cause of the problematic behaviour.
- No TV in her bedroom after 9pm.
We don't have TVs in bedrooms here so this isn't relevant. They do both have laptops in their rooms but illicit late night watching/use hasn't been an issue so there's been no need for a rule.
A rule I have that doesn't feature on your list is that phones shouldn't be in their hands when walking along the street/crossing roads etc. It's an awareness and safety issue - they've both been told that if they're seen crossing roads whilst fiddling with/looking at phones, it's likely their phone will not be allowed out of the house.