The state will not change the voting system

No one apart from the voters can stop first-past-the-post... we can assume a reform of the voting system from fptp to pr will not be imposed on the people by the state. The reason we can assume this is that (if anything) pr will give the people more power so it is not in the interests of the state to make this reform... they would be acting against their interests. So it is only if the people themselves go on strike and refuse to vote for the fptp-endorsing parties that reform will (or can) happen. There will be no transition from fptp to pr unless the voters demand it at the ballot box in a general election... it will not come from the state. The state will not change the voting system only the people have the ability to change the voting system.