For the happiness of individuals, such as different men whom he chooses to find happiness with going to the Cafe drinking every night. Because it is what he is doing and being.
The happiness of every individual is different. Like the old man, he chose to become happy by drinking at the cafe every night. It's what they do feel.
Finding happiness of each person different. Like this old man, he chose to happiness to drink at the cafe at night. Because of what he did and comfortable.