text: The first reason is because it makes them feel better. It makes them feel better because it makes them feel reassured about their answer. Some people need to be reassured because they ether have anxiety and dont want to make a big mistake where people would laugh and make fun of them. I know this because my sister has really bad anxiety and she needs me or my dad to reassure her all the time. A lot of people ask for reassurance they ask two pr more people just to see if they get multiple of the same answers and they use ether what ever one people said the most or the one they like best.