I disagree with the idea that Chris's morality is literally immature. Chris is a relativist in my opinion. Plenty of adults have relativist ethics in stark contrast to the archetypal/absolute morality of the West, and many who insist on the very much absolute morality of the Bible will almost intuitively view relativist morality as immature. But that doesn't mean they are.
The main difference between absolutism and relativism is that an absolutist has a strong belief in moral correctness – that actions are either right or wrong, and which is which isn't up for debate. Relativists believe right/wrong to be a matter of opinion – this doesn't mean they all desire a free-for-all, but that their morality is more open to accommodating:
- benign, consensual, or minor deviations from social conventions (i.e., casual cursing)
- separation of legality from morality (i.e., believing an action is wrong, but also believing that it shouldn't be illegal, or that the punishment doesn't fit the crime)
- analysis of the actual consequences of taboos, enabling a case-by-case view of morality (i.e., yes, gay people are statistically more likely to catch HIV, but it's neither inevitable nor exclusive to gay men – but safe sex is a must)
- epistemological relativism (i.e., words can mean different things in different contexts, and every word is a human invention)
- utilitarianism (i.e., a white lie can have positive social benefits, unlike a serious lie)
- boundary manners (i.e., being polite is a manner of respecting the comfort of those individuals in your setting, not following a collectivist ideal of etiquette)
For some, relativism can appear self-serving, warped, or inconsistent, but I believe it's just a different kind of integrity. I actually think many people become more relativist as they get older.