The grid has a lot of child AVs because it is a haven for child AVs. You only have access to it if you become a member. You can only become a member if a current member vouches for you. That's a way to keep out griefers who attack child AV friendly places.
Off-topic a bit: In SL, griefers would target the same, plus femdom and LGBTQ+ places. I'm not sure that griefing was also a problem at Asian and Black focused places, but I have heard that there was a lot of racism in SL. All and all, SL/OS are not necessarily very welcoming places, but OS is more so than SL.
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