Husband and I live with my MIL, a long time ago when he got his first bank account he signed up for a joint account with her. Well fast forward 4 years we're married and they STILL share an account. He's finally willing to take her off and put me on, he's never had any real resistance to that but he just never got around to it which pissed me off. Is it super inappropriate that they share an account rather than me and him? (We have no qualms about joining our money, we already do I just have to cash my check before it can go into his account)