How do I change names on hand me down phones

don't use the same appleID!

if you do then you will all get the same imessages you will not be able to imessage eachother or facetime eachother and you will all get he same call log

use family sharing

iCloud - Family Sharing - Apple

how to rename iphone

Change the name of your iPhone, iPad, or iPod - Apple Support

Hi

Everyone need there own apple I'd they are not made to share.

All apple devices with the same apple I'd will get the same information.

Anyone 13 years or over can have own apple I'd

Cheers

Brian 🇬-1F1E7;