Answer with Explanation:
There are many reasons why people laugh. Fun fact, most laughter is not the result of hearing a joke but of connecting or spending time with people close to you, like your family and friends. This is called "shared laughter/humor." It is more long-lasting than simply hearing a joke.
Family and friends are close to us in the social circle and we, somehow, share an understanding about how we perceive the world around us. This is the reason why a group of friends may find something funny in one situation while another group of friends may not have the same reaction or feeling towards it.
Such shared humor may be related to people of specific ages or culture. For example, your children may find SpongeBob funny while you don't see it the same way.
