Also people get married in Europe and move to London and then they lose all their assets. No one warns you when you enter this country that this implies a 50% chance of losing most of your assets. Disgusting.
Again, when someone moves countries I would expect them to fully research all aspects of that. When would you like this warning to be given? When they check your passports? A sign at Dover?
I think the the U.K. in general has an point of blindness over discussing marriage contracts. I got married in one European country and am getting divorced in another. In some countries there are options of which marriage contract to be married under - the couple choose. In France they have three basic ones:
- English-style: what's yours is mine, what's mine is yours
- Scottish style: everything accumulated from date of marriage is communal property, everything from before is personal property.
- All assets from before and after marriage are the property of whoever earns/invests/buys them.
And then there are lots of clauses that can be added on.
It's standard and means a discussion needs to be had. In the U.K. that discussion is seen as almost disgusting - far more than merely distasteful - to have when you're engaged. So I don't think most married Brits could actually tell you how their assets would be divided in divorce, because they've made assumptions, not had discussions about the law! So perhaps signs up at Dover would be useful for Brits returning from holiday!
But OP the bottom line is that each country's marriage/divorce laws are based on "normal" people, which millionaires are not. They are also intricately tied up in the social and legal fabric of the state (including inheritance laws) and associated cultural norms. In France, for example, there's no division of pensions. Pensions aren't seen as assets, but managed by the state, so seen more like a state benefit. Everybody has one related to their job (and most women work) so they simply don't feature in divorce. Other EU countries and the U.K. regard them as an asset that can be divided.
So the law isn't set up for the some of the most privileged people on the planet and they have a disadvantage because of that privilege. Is it fair? Nope. But as the rest of us very hardworking (but normally remunerated) people can attest, life isn't.
Also the most wealthy have money prudently tied up in trusts and other ways making them less well off on paper. They're well-protected, unless they've not invested a fraction of their money in good legal and financial advice! I'm not sure we need to be overly concerned on this point.