You need a Facebook account to set up Oculus Quest 2. That's one of the things I don't like about Oculus. I don't use Facebook... but I set up an account just to use my Samsung Oculus VR headset to use my phone on a few years ago. Since I already crossed that line... it made it a little easier for me to purchase a Quest 2.
According to Facebook, the age requirement for an account is 13 years old. It has to be a real account with accurate information. If Facebook finds any false information on the account, they will ban the account, and potentially brick your Oculus Quest 2 headset. I can't make recommendations on this... so might want to think this through on setting up Facebook accounts.
Setup is easier than most of the higher priced VR systems... which required highend PC's and mounting trackers on the walls. The Quest 2 setup a lot simpler...
- Download the Oculus app on your mobile phone
- Login to the Oculus app with your Facebook account
- Pull the battery tabs on the controllers, and turn on headset
- Connect to wifi for initial setup
- Finalize setup connecting to the Quest 2 to your phone via Bluetooth
This vid is pretty good at explaining the steps... and has additional VR information.
The nice thing about the Quest 2 is you can use it as a Standalone VR headset. Just download games in the internal storage, and play without connecting to a computer. However, batteries will last around 2 hours. There are external battery pack options if you want longer play time... but it is a good idea to take breaks when gaming in VR.
You can purchase games on a computer with the Oculus Store app installed, but you have to play Oculus PCVR games with with an Oculus Link cable. Also, your computer must meet spec requirements, which will be listed in the game description. The official Oculus Link cable is $79, but you can get cables on Amazon for $29. Advantages of playing with the link cable is it should charge the battery while your playing... battery will still drain, but not as fast. Another advantage... you don't use up internal storage space. Disadvantage, you can get tangled up in the cable and disconnect from the computer, or damage your headset.
For me... I prefer playing my Quest 2 Wirelessly though the Steam games app on my gaming PC... but PC hardware requirements are steep and expensive... not a good time for building PC's right now.. parts are hard to get. I do play with Oculus Store PCVR games with a Oculus Link cable with a pully system mounted on the ceiling so I don't get tangled... but wireless give me the freedom to play anywhere in the house.
I'm sure your son will enjoy the Oculus Quest 2. With how hard it is to get a next gen console, it is another good option. I really like my Oculus Quest 2... and my kids really like it too. I pretty much game with with it daily. Here is my setup...