Fact is most don't invest the difference, they spend it. I did. And to me, I don't care how much the avg person saves up... it doesn't eliminate the need for life ins.
Many moons ago, I was sold on BTID. Well I didn't invest it (though I intended to) I just spent it. And my 20yr term policies expired so I had to put other covg in place at a higher rate. I wish I had know about how to max fund a permanent policy 25yrs ago. I'd venture to say 8 or 9 out of 10 sold on BTID don't actually save it. My guess anyhow.
Permanent ins isn't that difficult of a sale, especially if you design properly. After a couple of years with a well designed WL plan, they basically have all of the premium going to cash each year. So they are technically "saving" at that point by default, but covered with a nice DB if something were to happen.
Sure they invest it.. They invest it in Chevrolet, Westinghouse, Sea Ray, Harley Davidson, etc.. If you don't believe me, just look at all the new cars, trucks, appliances, boats, bikes, etc. they have sitting around their house.