First, curiosity.

People are curious about things they don't know. I always eat at home. I don't know what it smells like outside, so I want to try it. As the saying goes: eat what's in the bowl and watch what's in the pot. This is normal. Curious about things that have not been touched.

Second, specialization.

Always eat at home, so eating out will become a special thing subtly, and naturally you will be interested and want to eat out.

Third, boredom.

Always eat at home, even if it is delicious, there will always be times when you are tired. At this time, you really want to change your taste, so you want to go out and eat something with different tastes.

Fourth, variety restrictions.

There are still restrictions on cooking at home, such as barbecue. Some of them are inconvenient to operate at home, or even if they are done at home, the taste is not as good as that of people who specialize in this. Of course, they would prefer to eat out.

Verb (abbreviation of verb) rebellious psychology

I remember when I was at school, day students always envied boarders that they could eat out, because they were always asked by their parents to eat at home, which led to a rebellious mentality.

The above points are for external analysis.