i guess i was unclear in the op, my fault
i totally understand what everyone is saying. some have their own accts and one joint for their own finance/bill paying management purposes, while for others with separate accts they just simply have an understanding and it just works for them. and i believe it was borg who liked to spend other people's money and not pay back so things went to collection and so it affected his wife. i totally get all that.
what makes it strange for me personally is the mentality of "this is my money, i earned it, you have no right to tell me what to do with my money, that's your money, i don't hassle you about what you do with your money, leave me alone, etc"
i just feel like in that scenario, there's a gap or separation somewhere. like a lack of bond or trust
in my personal life, we have had joint accts since day one. when we got married, that week we went to the banks and i added her to my accts. and when we bought cars or a home both our names went on it. i fully live to the traditional "two become one, what's yours is mine, what's mine is yours" mentality of marriage. for me it's cultural, religious and just personal mentality of mine