Sometimes when we argue, what we’re really doing is trying to justify our right to think for ourselves. But we don’t need to justify every decision we make to everyone.
No one is going to agree with you on everything—not even the people closest to you. If someone agrees with you on everything, one of you is either pretending or not thinking for yourself.
That doesn’t mean you’ll never owe someone an explanation. Sometimes you will, but not to everyone and not on every matter.
You especially don’t need to spend your time trying to convince anyone who is inconsequential to your success or failure.