us americans love to stereotype, don't take it too seriously, usually the ones stereotyping are doing it because of their own flaws.

I enjoy tea and I'm american

Have you ever been on say a video game where you talk on a headset and have an american say "Hey why don't you learn american?" I've heard it before between a English guy and an American arguing.

Without stereotypes though who would inform people that asians are good at math, mexicans are sleepy, african americans love fried chicken and watermelon, and americans are fat lazy (or anorexic and full of plastic surgery) and like to stereotype.