Is it ever okay to try and change another person's personal beliefs, simply because you disagree with them? It could be something a big: a person who believes that abortion is fine/wrong, or conflicting religions, or political disagreements. It could be something small: should you leave the A/C on or off when you leave the house, toilet paper roll facing toward/against the wall, antibiotic hand soap or natural? Where is the line drawn? Trying to change a person's beliefs is essentially asserting that they are not entitled to their own opinion. I have a real-world example (that spawned this) that I'll drop in later; I just want to see what people think first.