I don't know why I suddenly found out that I didn't like my parents' cooking and always wanted to go out to eat.

It's simple. The food outside is not a chef's craft, but a special dish, all of which are extraordinary meals, while parents cook ordinary home-cooked dishes. If you eat too much out and use too many good things, you don't like ordinary meals at home.

It's not that I don't love my parents, nor do I dislike my parents. It's just that you have a wide range of knowledge and contrast, and your parents' skills are inferior.