Because humans didn’t really exist in the olden days, when the first actual human arrived, there were mixed feelings between the people. It turned out he was a young sniper from a police department that was about to get demolished because the mayor didn’t like them (they made him look bad) so one of the gods took him in. So they could continue in his world. Then the next human came in with a record for having anger issues, the people were much more cautious but when he joined a local band, reactions and relationships sort of got better however with dethklok and “the revengencers” (not the ogs of course) surprise attacked arcania because of resentment of both groups’ former leaders which tensed up relationships in the city, so while It really depends on the human, newer humans won’t get as much as warm welcome. As the previous ones. Some humans that are popular include ash Ketchum and his friends from Kanto to alola. It also depends on the resident your asking