I have eaten in many university canteens. jiaozi is not the hottest, but jiaozi is not unpopular and nobody eats it, and it is definitely average unless you do it well. But jiaozi is safer and some people will eat it.

It won't be too hot. Try to make it delicious.

Yes, the profit of catering is still considerable.

It is suggested to sell porridge and cold rice noodles by the way, which is also a plain and always popular choice.

Nowadays, students are very pragmatic. If the taste is not delicious, the second one will be changed to infeasible.