it has nothing to do with mentality. Everyone has different tastes. Like to eat meat, like to eat fish, like vegetarian. Those who like Chinese food and those who like western food. It is normal. Nowadays, the catering industry is very prosperous, and you can find whatever you want to eat from any country. Moreover, there are many Chinese people traveling abroad now, and they are exposed to too many things. It is nothing special to like to eat western food, which is not as novel as it was decades ago.