Since the Oculus Quest 2 became very popular there is a sudden surge of kids playing VRchat after getting the headset on christmas lol.
How I tend to spend my time in VRchat is trying to socialise with friends (I usually avoid public lobbies because this is where the cancer gathers). The most interesting thing about VR chat is visiting and discovering worlds, I will provide a few wonderful ones I have visited in picrel for you to check out (and there's still a million other worlds to look for, let it be a fun adventure for you to discover them too). Bonus if you have a headset, these worlds are much more enjoyable and immersive in VR.
For public worlds, you can find nice people if you looks hard enough, sometimes it is just coincidence. I have met quite a few very decent people who are happy to simply talk and chill and discover worlds.
The real downside to VRchat is its community which is filled with braindead lonely horny people that might ask you to ERP with them. Ignore them. Ignore the kids too, and report them if you find kids under the age of 13 (I wish the minimum age would be MUCH MUCH higher for this game though…)
Have fun visiting these worlds, and remember there's much more. I hardly have discovered all the good worlds in VRchat (let alone the hidden gems). Let yourself get taken by surprise.