People have been trying to make the house raccoon a thing: https://old.reddit.com/r/raccoons From what I remember spending time on this topic, raccoons need super challenging locks as toys and TONS of engagement from their keepers because they get bored easily and bored raccoons == ultra destructive raccoons. Also, rabies.
Assuming you are starting with a wild raccoon, get one from a population that is not in the eastern parts of the US or Canada and rabies is unlikely. Here in Washington state for example there have been no documented cases of rabies in any wild raccoon in at least 60 years. Same goes for all other wild terrestrial mammals here.
Rabies is neither subtle, nor slow.