It is not a question of refusing responsibility. The beneficiary is the person or institution designated to receive proceeds upon the death of the insured. He/she/it has no obligation to pay future...
When writing a will, a beneficiary is simply a person who benefits under the will of a person, it could be a spouse, any family member or anybody else
I think you mean WHO. They are the people you wanna give all your crap to when you die.
It is a social responsibility
Incase something happens to the first beneficiary. Such as: they pass away.