From reddit: I used the Western toilet horribly wrong until I was 16.
"So I'm an Asian male and we don't have seats on toilets. So you don't touch your ass anywhere.
I don't remember the first time I used a Western toilet but when I saw the toilet seat, I assumed it was a shield.
Hence whenever I had to poop, I would put up the seat and sit on the bare toilet. And whenever I had to pee, I would put down the seat to pr..."