Okay so
Dh and I have 3DC. Dh is older than me by quite a bit and it stands to reason that he will probably pass before me. Dh is the only financial provider in the house as I focused and still do on raising the family. I worked out the other day that I will not work enough qualifying years to get full state pension by retirement age and will likely be 6-7 years short of it. Let's just assume that I won't get any state pension for the sake of argument (I only currently have 6 years qualified). If DH dies before me, my pension from his employment will be £1500 a month forever (unsure currently about inflation rules with this). If you had a house paid off and 3 grown up children, would this be enough for you to live off?
Dh tells me how lucky I am to A) get this amount without working for it, which I totally agree, I am lucky and that B) people have to save a lot to have a private pension of that amount. Whilst that may be the case, it's possible that I won't get any state pension so it would be £1500 to live off solely with the assumption that DC are grown up, but who knows if that'll be the case. But for the sake of argument, let's say that they would be grown up.