Allow client to delete storage objects or account?

Runtime Framework
1

Using unity Is it possible to delete all storage objects with various collection and key names from a users account?
Furthermore is it also possible for a user to delete their own account from nakama via a function or some RPC call?

2

Using unity Is it possible to delete all storage objects with various collection and key names from a users account?

Yes, but you will still need to set all their collection and key names on the request.

Furthermore is it also possible for a user to delete their own account from nakama via a function or some RPC call?

There is a function called DeleteAccount() which should be available via RPC.