People want to control their finances independently. The government and the banks really puts a lot of pressure on the people and impose unnecessary taxes in the name of development of the nation. This is the reason for which many people dont want to give away their hard earned money in the form of tax and hence they look for decentralised way of managing their finances. Bitcoins provide this and hence many people use the coin. Bitcoins price cannot be fixed, if it is no more decentralised. To make the price stable, some governing body needs to manage it, and here it cannot be possible.