As @vanillandhoney says it's not just in the event of a split, accounts are instantly frozen in the event of a death and it can be a nightmare gaining access.
Ditto divorce - yes legally those funds are part of the marriage pot legally but it can take several months.
When my ex and I split (his cheating) a previously loving, family oriented man turned into someone who drained our accounts within days of the split - knowing I had no income at that time and a toddler daughter to feed! He didn't even tell me I didn't find out until I went to cashpoint to withdraw cash for food shop.
I had to borrow from a virtual stranger until I could open my own sole account and parents could transfer money into that and several weeks later until I received backdated benefits payments and first salary from the job I was VERY lucky to find quickly along with a nursery place for dd.
At the very least:
Open a sole account - with a DIFFERENT bank to him
Ensure any benefits relating to the dc are paid into that account
Get a credit card if you can - not saying to use it but there for emergencies
If possible to persuade him - perhaps take the tack of in case anything happens re covid (not a bad idea for most people at this time in my opinion, while there are those at higher risk anyone can catch it) to put at least some of that money in your name or joint names.
Difficult at the moment I know but look into any way you can get back to working ASAP. As I say I was lucky! The economy was doing relatively well at the time of my split and I was able to find a nursery place for dd.
You ARE vulnerable just not quite as vulnerable as if you weren't married.
My ex is hardly brain of Britain and had merely moved the money into a sole account with the same bank so even though he lied on his disclosure it was relatively easy for my lawyers via whatever the legal route is, to gain the accurate information. So eventually I got the money back. But others are more savvy so you need to protect yourself.
Given you don't work there must be tax advantages to you holding some of the investments and money in your name
excellent point
thought there was something that stopped people getting rid of funds prior to a divorce?
Yes but you have to be able to prove the expenditure was unwarranted and that can be difficult and take time.
Re our family car I had to wade through a load of emails we'd exchanged around the time of purchase to find evidence that he considered the car our car rather than just his.
Please don't rely on him to do the right thing if things go wrong can't back this strongly enough
What would stop him withdrawing the money in a crisis? How would I be any better off? I learned too late I could have contacted the bank and inform them the funds were "in dispute" due to relationship breakdown and they'd have frozen the accounts until the matter settled. Or at the very least if I'd been more cynical I could have withdrawn half myself immediately.