Weird girl question about facial cleansers!

Sarah

Whenever I read directions on things or look at charts that show the right amount of beauty products to use, they always say use a small or dime sized amount of a facial cleanser. BUT, whenever I watch YouTube skincare videos or get unready with me videos they are putting at LEAST a large quarter sized amount in their hands or on their clarisonic and lathering their face for at least a minute. Which do you do or think is correct?