Answer:
The commonality shared by 'all peaceful begignnings of government' is consent of the people.
This might lead to a more peaceful government as it will make everyone agree and be happy as this is what all people desire.
Step-by-step explanation:
When John Locke says that 'all peaceful beginnings of government', he suggests the commonality shared is consent of the people. He backs up his support for democratic government by this statement.
He suggests that 'all peaceful beginnings of government' are supported by people. They have given their consent to such peaceful beginnings.
Suuch peaceful government will lead to a happier society and will make people agree with the government. For people, all they want is to be happy and live in a happier society, thus peaceful government will help in achieving this.