I'm not sure if anyone has replied to your post yet after you raised this point in reply to my post.
There are slightly different rules depending on if you are in England & Wales or Scotland.
I'm going to be assuming E&W here.
Generally speaking, people have "testamentary freedom". This means that you can leave your possessions to anyone you want in your will (even the local cat rescue home in preference to your own children if you so wish).
"...everything is passed to the spouse upon death?"
You may be thinking here of things like joint ownership of a home or joint bank accounts.
If a couple own a home as "joint tenants" (as opposed to "tenants in common") then, on the death of one spouse, the home does automatically pass to the surviving spouse on death. Similarly with joint bank accounts, the surviving spouse automatically inherits the account.
However, many people these days are choosing to own property as "tenants in common" so that their share does NOT automatically go to their surviving spouse or partner.
"...everything is passed to the spouse upon death?"
Another situation where this can happen is if one spouse dies without making a will. They die "intestate".
Again, this is just for E&W but the outcome will depend on the value of the estate. If the total estate is worth less than £322,000 then the surviving spouse does indeed get everything.
If the estate is worth more than £322k then the spouse gets the first £322k and anything above that is split 50/50 with the children.
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"She should’ve got the full lot not 50%, I don’t get that at all."
The decision in this case is not a particularly surprising or notable one. Indeed, it is perhaps what many lawyers would consider a classic or “textbook” Inheritance Act claim.
A devoted and long-suffering wife and mother is disinherited by her own husband who wished to pass on his estate exclusively to his male heirs, and is then awarded half of the estate by a judge who adopts the divorce standard.
I think that this case shows that, while people do certainly have "testamentary freedom" to leave gifts to whoever they want in their will, that must be balanced against a society which, quite rightly, stands against very obvious injustice and inequality.