In media, there are sometimes stories where a person is cloned/duplicated (usually with identical memories) and the clone is murderous towards the original. Usually it’s something like “I knew there could be only one of us, and you would do the same”. Sometimes, they’re able to work things out and can share a single public identity, or duplication gives one copy a chance to do go off and live a new life that they always wanted.
How would you and your duplicate get along? Assume you are living like you do today, in a society where duplication is unheard of and has no legal precedent.
No, we would work together on tasks. I would walk to work while Other Me would take my car and get errands done. Or to change things up a little, Other Me could walk to work and I would run errands.
Hell, Other Me could play my online games and make progress while I’m at work. I’ve been meaning to level up my Black Mage in FFXIV, but life has kept me busy.
In the evenings, we would have to clearly explain to each other what we did that day and who we interacted with. Otherwise we risk diverging into two different people.