Insurance is just to buy "assurance" rhay if something happens in between (accidents/ illness/death) then those that are left behind (family/debt) can be (kind of) settled.
If you are generally in clean bill of health till and ripe old age, its a rip off because the returns are super low.
However, there are plenty of scammers out there in terms of investments too, they even disguise as jobs and offers to "train" you along the way.