The constitution is very hard to amend and make changes to. When a major court case makes it to the Supreme Court, they decide whether or not the case is deemed constitutional or unconstitutional. The constitution is difficult to amend as it is meant to be a defined guideline made by the founding fathers, that can persevere through many years, despite the day to day politics any democracy has. When there is a constitutional ammendment, it is a major decision with many checks and balances to make sure that the change is not frivolous.