Regarding joint accounts a cautionary tale
I had joint accounts with my ex Current and savings and throughout the marriage money was all treated as "one pot" and we had equal spending money, never major arguments about money all good yea?
Then we split due to his infidelity
I was a Sahm at this point for complex reasons and had no income of my own. Within 2 days of our split he emptied the accounts without a word to me. I knew nothing until in that deeply embarrassing scene of being at the supermarket with a weeks worth of groceries to pay for and...card declined!
He KNEW I had no income of my own, though some of that money he'd withdrawn had been earned by me and the money he withdrew also included child benefit and child tax credits, money intended for our daughters needs.
He left me stuck in the arse end of nowhere with a baby with no transport, no money for transport and no money for basic essentials either.
Now admittedly these days I'd have been able to access funds far more quickly and easily as I'd have been able to quickly set up a new bank account and my parents would transfer money to me.
Back then it really wasn't that easy, I had to borrow from a neighbour I hardly knew, then my parents sent me a postal order that I could cash to repay the neighbour plus a bit more to be going on with until I could open a new sole account and arrange for child benefit snd child tax credits to go into that account.
It took WEEKS to sort out and I'm very lucky my parents were able to help me out. Not everyone has family or friends able/willing to help out in such a situation and it still takes bloody ages to get child benefit etc paid into a different account and I also started a claim for income support which took nearly 3 months until I got my 1st payment by which time I had found a job!
I will NEVER have a joint account with anyone ever again. It made me far too vulnerable.
Not everyone has the choice to not be a sahm/go out to work.
Back then I was fit and healthy and frankly the economy was doing a damn sight better too!
Within 5 years of the split I was disabled and dd was showing the first major signs of what I would later learn was her own disability, within 7 years after split I was no longer able to work.
Everyone's circumstances are different and they can change drastically on you.
Another friend of mine who split from her ex around the same time her child has learning difficulties and other health issues. It's impossible for her to get childcare and even if she could she would need so much time off work for his medical appointments and assessments and therapies etc that no employer could reasonably support her.
Yes some women are higher earners, some have more assets etc but by and large it's women who's careers and prospects are most harmed by becoming parents. It's women who come off worst financially following a split.
There's also the fact that marriage isn't only protective in the event of a split but also if one party becomes incapacitated or dies. Incapacitation being by far the worst scenario financially speaking, it's incredibly expensive to be very ill/disabled and needing care and support.
Nothing protects totally but planning and preparing as much as one can is the best option.