
Traditional insurance usually calls for a level payment to be made by the policy owner that is higher than necessary in the early years and lower than needed in the later years. In its simplest form, a policy issued to age 100 may be very similar to a Term insurance policy issued to age 100 and may or may not illustrate cash values. Many traditional policies will illustrate [and guarantee] a cash value equal to the face amount of the policy at age 100.
Traditional policies take many different forms including:
In days gone past, fathers would buy these types of policies for their daughters so they would have an income upon reaching a certain age [hence the expression, 'dowager']. In recent years we see these being sold as Retirement [Freedom?] at age 55, 60 or 65 - or, as contracts to provide 'Living Benefits' for people after they have left their businesses.
It is important to be aware that, whether illustrated or not, cash values do exist [at least notionally] in a level premium policy [term or traditional permanent].

If cash values are illustrated, [and therefore presumably payable to the owner on request] the insurer will usually have charged a [slightly] higher premium than if not illustrated. e.g. the premium charged to obtain a cash value of 'b' will be higher than to obtain the lower value of 'a'.