Very close to buying a 14" MacBook Pro! If I do, I want to clear out and transfer my 2015 MacBook Air to my granddaughter. I believe I understand clearing the drive. But my questions have to do with what to do after that. Granddaughter has a iPhone, therefore believe she must have an Apple ID. How do we get the fundamental programs/apps (Pages, Numbers, Calendar, Messages, Photos, etc.) back on line and in her name? Is that something I do before I give it to her or something she does once she does whatever it is she needs to do contacting Apple? Is there a tutorial on this subject somewhere? Thanks for help and suggestions!!