Second Life allowed for a lot of the NSFW content and interactions that people tend to enjoy both in entertainment and in real life (this is also true of VRChat to some extent). Metaverse will be a sanitized, sterile project for children. Fundamentally the people like Zuckerberg responsible for its execution do not understand what people want, which is why Metaverse has no chance of success.
I have owned land in Second Life continuously for probably ten years or more. Haven't been on recently but very familiar with what you are talking about. NSFW is a big part of it but by no means the only part. Meta has a very dominant position in VR headsets. All they have to do is add add a "teleport friend" button to message notifications inside of Oculus Quest 2 when you are in the default home environment, allow…
I also barely know people that use Facebook. And many that are not willing to create a FB account for whatever reason.
It's just anectotal. But I don't see how this walled garden will find any widespread use around here. Just as I know no one who uses Apples walled garden chats, simply because apple never reached a critical mass and people don't like to be locked out of their friends.