So I helped set up my Nans iPhone. She’s had an XR for about two years which is a great size for her. I choose to make the display zoomed, I increased the font slightly, I removed all apps she doesn’t use, I made the Home Screen basic of the apps she wants (and a weather widget at the top). I put Face ID with two scans (one with glasses) and also made sure that it works with eyes shut as well (as it works better at a slight angle too), also set up just a 4 digit pin. I also made it say the name of the caller when it rings. Made sure dark mode was off so that it is consistently bright most the time. I set a spend cap so she can’t accidentally send picture messages via MMS and disabled MMS (iMessage only for photo sending). I also setup emergency contacts and medical ID just incase. I added a folio case because it’s better to protect it and added a card in the card holder which has emergency contact details and information of how to access medical ID. Also taught her emergency SOS just incase! Disabled crontrol Center access from Lock Screen and also accessing today view from Lock Screen to keep it consistent to unlock, disabled notifications from all apps except the ones she uses to message, call and anything I deemed essential. Also changed it so some notifications are alerts instead of banner notifications. Made sure that notification access was there without even Face ID. Set photo backup just incase delets stuff. Set tabs to close after one day and the home page to be google main page so ease of use for the odd Occasions she wants to use something. Also taught Siri for basics like calling and weather. This was over the course of a couple months, with no computer use at all before this (just a basic Nokia) and she’s got used to it. There are a couple apps on there outside of the default ones, she has WhatsApp for family that don’t have iPhones to send photos and for FaceTiming them too, news apps etc - just basic stuff she already does but via other means usually. If I can think of more I’ll update my post.