That’s because you aren’t 12 years old. Ryan George (a YouTuber) made a video where he checked out the metaverse and it was basically exclusively filled with children. He played metaverse worlds for around 5 hours straight and didn’t meet a single adult the whole time. It’s children using their parent’s old Meta Quest 2 headsets they bought during the pandemic because they were bored, then forgot about.

Until I locked my headset down my kid got onto the metaverse a few times without me realizing, and playing a bunch of random “experiences”.