A:AnswerThe quest doesn't require a PC to work, just a device to access the oculus store for the setup process. If his laptop can run VR games, the quest can also play VR games meant for the oculus rift and rift S. He just needs to connect the quest headset with the Oculus Link cable. Not many laptops can do that so be sure to check the minimum requirements for those games first.
A:AnswerThe Quest games are stored on the Oculus Quest. With the new Oculus Link update all Oculus Rift games can be played on a linked Quest, which are stored on the PC.
A:AnswerQuest comes with everything you need to get started and download more games. You will need wifi to download games but you don't need it to play them.
'
A:AnswerYou could buy a cheap phone running Android 6, you don't need to be able to make or receive any calls on it: or you could borrow your friend's phone to set up your Oculus account, once your Quest is set up you can do everything from it.