Who's moral justification? Yours?, My families?, my community?, my government? my god?

I maybe too much of a individualist, so I get a little triggered when I see claims from others about the moral justification of what I should eat, what job I should have, who I should vote for... When these things that I do are not hurting myself or other humans.

Now I'm sure you could take an example of each one of these and "butterfly affect" to some example of hurting another human, but I could do the exact same thing to any one of [your] lifestyle choices.