Some people say that ... (for exam)

Some people think that all school-children should wear school uniforms.
Some people think that physical education should be on students’ timetable every day.
It is sometimes said that making a film is not art, it is a technical skill.
Many parents want their children to learn to play a musical instrument.
Some people say that the more different two people are, the better friends they make.
Some people say that it is not important to know or help one’s neighbours.
Some people say that housework is something for grown-ups, not for children
Some people say that it is better to read newspapers online.
Some people say that people have a harder life living in a in a big city.
Some people say that before finishing secondary school every student should spend some time abroad as an exchange student.
Some people say that life in a foreign country is better than at home.
Some people say that learning to cook is a waste of time.
Some people say that students should study only those subjects they are interested in.
Some people say that going to the theatre is a waste of time and money.
Some people say that the best way to celebrate a birthday is going to a club.
Some people say that it is not important to know or help one’s neighbours.
Some people say that there should be at least three children in every family.

Why do you think they say that? Do you agree? Give reasons.