Americans often put as much sugar in coffee as they do in soda. If I'm going to drink a sugary beverage in the morning, it may as well be something I like.
I sometimes go to Starbucks and get something that is basically a milkshake, but I get my coffee elsewhere and I never add sugar to it.
https://www.starbucks.com/menu/drinks/espresso/caffe-mocha#s...