Social constraints means restrictions or compulsions imposed by society, these constraints are backed by organised social authoirty. They restrict our freedom in ways that are difficult to fight against.

Necessity of constrainsts for enjoyment of Freedom :

(i)Scholar like Voltaire of France disapproves any kind of constraint for full enjoyment of freedom. He was committted to unrestricted freedom of expression on the other hand there are several sections or groups of different communities which want to ban on films, books, plays and even academic articles in research journals.

(ii)Banning is an easy solution for the short term since it meets the immediate demand but is very harmful for the long–term prospects of freedom in a society because once one begins to bar then one develops a habit of banning. 

(iii)Just for interest in England anyone who is employed to work for the Royal Household is constrained by contract  from writing about the inner affairs of the household, so if such a person were to leave the employment they would be unable to give an interview or write an article or author a book about the politics of the Royal household.

(iv)If we willingly, or for the sake of pursuing our goals or ambitions, accept certain restrictions our freedom is not similarly limited. In any case if we are not coerced into accepting the conditions then we cannot claim that our freedom has been curtailed.