Is it permissible for an employee to include his father in the compulsory health insurance deducted from his salary, given that the insurance obligatorily covers only the employee, and he may optionally include his wife and children without an increase in the deduction?

It appears that the free family insurance is governmental and part of social security, which most scholars permit as long as the state manages it for the purpose of mutual support (takaful) and not profit. Therefore, there is no harm in the questioner and their parents being covered by it. However, if the insurance is individual or private, then it should be examined whether it is a permissible cooperative (takafuli) insurance or a prohibited commercial one. If it is cooperative, there is no harm. If it is commercial and mandatory for the employee, then only the employee may subscribe, but not their family, due to the absence of coercion.