People of all ages and cultures respond to humour.
The majority of people are able to experience humour,
i.e., to be amused, to laugh or smile at something
funny, and thus they are considered to have a sense
of humour. The hypothetical person lacking a sense
of humour would likely find the behaviour induced
by humour to be inexplicable, strange, or even irrational.
Though ultimately decided by personal taste, the
extent to which an individual will find something
humorous depends upon a host of variables, including
geographical location, culture, maturity, level
of education, intelligence and context...