I had a joint bank account with my ex husband and I didn't like it, he tended to take control of that, both our incomes went in and he then switched quite a substantial amount of that every month into a joint savings account and then had the cheek to tell ne we had to be careful for the rest of the month because we didn't have a lot in our current account
Yes I could make purchases but I got sick of running it all past him first. However that was all a long time ago.
Present husband and I have been together 34 years or so and we happily operate separate bank accounts, he has a state pension, private pension and investments in a wrap that he draws on for big things like holidays etc. He pays me housekeeping, not a huge amount as I have rental income from a flat I own, I have to wait till next year to get a state pension. He pays all the bills and my petrol and my car maintenance. I pay for some of the entertaining and all the food and housekeeping I pay for my own health club fees and similarly he pays for his golf club fees. I cover the cost of my own clothes, shoes, make up, hairdressing and similarly he pays for his stuff out of his account and he also pays for our once a week cleaner, cos that was his idea
although I do appreciate having one. We both however regard any money and assets as "joint" but I think we both like separate accounts though it works for us.