Yeah definitional. I think “I should do x” means about the same as “It’s ethical to do x”. In the latter the indexical “I” has disappeared, indicating that it’s a global statement, not a local one, objective rather than subjective. But “I care about doing x” is local/subjective because it doesn’t contain words like “should”, “ethical”, or “moral patienthood”.
Yeah definitional. I think “I should do x” means about the same as “It’s ethical to do x”. In the latter the indexical “I” has disappeared, indicating that it’s a global statement, not a local one, objective rather than subjective. But “I care about doing x” is local/subjective because it doesn’t contain words like “should”, “ethical”, or “moral patienthood”.