Straightforward mirror wills , everything to DH, then to DC.
DC are young adults, still living at home with no offspring. Obviously that can change but atm, the prospect of us all dying together in a road accident, say, and there being no further offspring doesn't seem that remote.
I've made a decision and won't change it now but what have you done for that eventuality? DH and I both have living parents and one sister, each with children.
No cousins or anything that I would recognise if I saw them in the street.
DH is NC with his parents and sister. My parents are wealthy have no need for anything extra. My sister is comfortable and has very wealthy in laws (far more so than my parents) so her and her DC already stand to do very well. It's not that I want to write them out, it's that leaving them more seems unecessary.
So it's a charity, although of course we're taking about an eventuality that we all hope will never happen.
What have you provided for if your DC do not survive you?