The SGLI is a long-time group life term insurance policy, very inexpensive, that covers members in combat zones, performing hazardous duty, etc., coverage usually not obtainable from most life insurance policies. Very few companies offer individual term or while life no-combat-exclusion coverage, and they are well-known to the military.
Any policy a military member may have prior to coming into the military may or may not pay out, depending on cause of death, nature of duties and location.
The member can sign up for it at anytime. The member can take a lesser amount and add more coverage later. I think this is sensible. I think the beneficiary percentages can be split.
Similar to most life insurance policies, it’s there to cover existing debt, such as credit card, optional career starter loan taken in 2/c year, car loans and mortgages down the road, and provide funds for spouse and dependents.
Some choose to get it and make a family member(s) the beneficiaries. As one USNA sponsor mid mentioned to me, if he died in a training accident or some other incident before he had a family of his own, he wanted to help his family then, since he wouldn’t be around later in life to care for aging parents or help out a sibling. He also came from a family where he was the first one to earn a college degree and was poised to far outstrip his family in means in the coming years. Family situations and context will differ.
It is automatically deducted from DFAS Navy pay. Once the military member can control their own pay through DFAS account log-in, it’s easy enough to adjust.
As I mentioned above, taking a lower amount, and increasing it later as family, property and debt increase, might be a reasonable way to go.