There cannot be any consensus on a pension reform
The example of France shows that there cannot be any consensus on a pension reform. Beyond the particular feature of the pension reform in France (the transition from 42 different systems to a single system will inevitably create losers and winners), a rebalancing of the pension system because of population ageing will inevitably generate conflicts: If the tax burden (social contributions) is increased, it is normally rejected by the working population (by the "young"); If the retirement age is raised or if the level of pensions is reduced, this are normally rejected by older workers and pensioners (by the "old"). Any solution will therefore generate a rejection by a large part of the population. Given the weights of the different components of the population, the majority choice would normally be that of young people, leading to a rejection of an increase in the weight of pensions.