Material world brings pleasure and miseries.
If one team wins the world cup, dozens lose. This shows that in material world ratio of people suffering is always greater than ratio of people happy
This material world is actually meant for misery, just as a prison house is meant for punishment.
The real problem of life in the material world is to solve the question of birth, death, old age and disease.
Srimad Bhagavatam 2.3.2-7,