DH is eight years older than me.
The only time the age gap really shows in music.
I was going to oven roast some chicken drumsticks in BBQ sauce for the permanently hungry DS (18).
I opened the chicken and it was so off (despite today being the date) that I who have a strong stomach ...... heaved.
DH held the food bag open, whilst gagging, and I filled them, whilst gagging. 
Anyway he came back in from the food bin and said OMG they were J Arthur.....
My 30 year old neighbour was standing in the kitchen and said what the hell is J Arthur....
DH is 63 this year, I am natch 55, we both got it.
I would hate to have to explain every point of reference.
Just an observation.