People have ego's. Instead of saying they are wrong, adopt their perspective and help them discover your perspective. They may like your perspective and adopt

People have ego's. Instead of saying they are wrong, adopt their perspective and help them discover your perspective. They may like your perspective and adopt it as their own reasoned opinion, lead them to it, and then they may adopt it and own it. Sometimes you'll find they have unstated reasons for choices, find workarounds for them. This is a basic human skill everyone should understand.