The charity that the employer giving to worker after retiring from job is called pension. This is the common belief about pension in the society. Since it is a pro-employer concept it is made by the capitalist forces. But it is wrong.
Actually pension is a delayed salary for a life long work. It is not charity, free, or favour.
Pension is a right for those who sell their ability to work for the production of surplus value during the good time of life. Those who work in private sector and unskilled labour are not getting it now. That has to be changed and all workers should get pension.