Responsibility and the demands of morality

Is it a good objection to a moral theory that it demands a great deal of individual agents? I argue that if we interpret the question to be about the potential welfare costs associated with our moral obligations, the answer must be "no." However, the demands a moral theory makes can also be measured in terms of what it requires us to take responsibility for. I argue that this is distinct from what we may be required to do or give up, and that it provides a conception of demandingness that makes better sense of our intuitive reactions.