@Lance R. Vick We got all the way to 10 and 11 years old for our 2 kids. Even then their phones can only text, make phone calls and have apps we install. There's no browser, social media, or video platforms on them. They only got them since they're at camps away from the house now.
Since we waited so long they have zero interest in any social media or need to fit in with their peers who've had phones for the last 3 years.