You probably didn’t have any luck in college.

The less problems people have, the happier people are.

The more solved problems a person has, the happier he is.
That is, if problems do not arise at all, a person turns into a vegetable, the result is unhappy.
In addition, over time, the same type of problems cease to exist and more and more complex problems need to be solved in order to maintain an acceptable level of happiness.