People who have a financial liability/responsibility (loans, family financial goals) higher than their financial assets (assets that can be sold or liquidated whenever required). You can read more about this in our eBook: https://www.beshak.org/term-insurance/e-book/buy-guide
If he qualifies through the above two tests, then ensure
you buy a cover of the amount (calculated as per point #2 above) and
for the duration he is going to have financial dependents. Let's say he retires by 65 years of age, and he has a corpus
Do let us know if you have any follow up questions. Would be more than happy to answer.