[pxc]

> Giving a justification is seen by these people are an excuse to debate.

Yes. This is a bit tautological because 'justification' is a word that connotes normativity, perhaps unlike 'explain' or 'describe'... but justifying yourself to someone else effectively invites them to negotiate your decision because it's a tacit admission that it matters (to you, or perhaps according to a shared social norm) that your decision is one they'd approve of in some sense.

However:

> For another example, trying to turn down something you don't want to do:

> A: "Can you come over and fix my Wi-Fi?" B: "No, my car's in the shop" A: "Oh, that's OK, I can give you a ride" B: "No, I have to go get dinner" A: "Oh, that's OK, I can feed you"

Trying to address someone's express concerns is not debating them. Don't tell somebody a fake story about what you want or why and then get upset when they honor your words!