Ugh the "I'm alright Jack" attitudes on this thread are revolting. Women who know that, no matter how lovely they believe their DHs are (including a poster whose DH bullied a MW into breaking hospital policy describing him as 'gentle') know other patients will be deeply uncomfortable or in some cases, terrified, having them there, fuck them, their need for their man at their side is more important. Fuck the reasons NHS have for same sex wards, fuck the fact that hoards of posters have shared stories of disrespectful male visitors - including telling a woman off for breastfeeding and shouting at a baby - their hubby is lovely so it's not heir problem. Nay, it's up to women themselves - many of whom are desperately ill and traumatised - according to one person to reign their vile partner in. That's the obvious solution to intimidating men here 
Thinking more about it I don't get why people believe that partners staying 24/7 will free up HCP time. I work in a hospital, I'm not a nurse but I obviously know many and are good friends with many who work on a mix of specialities - such as coronary care, HDU, maternity, paeds and stroke. They all have different roles but all have one common belief - the hardest part of the day is visiting hours because so much of their time is taken up. As you now have triple the demanding people, questions, more abuse, more demands and ranting, and more people to explain things to. Many of my nurse friends prefer night shifts for this reason. Having 24/7 visitors on a ward will only take up more resources and HCP time, especially if men are trying to get them to do things they don't already have time to do.
Then what happens? The women who have no partner there are the ones left behind. So they have no support and even less HCP support. Plus they're probably feeling possibly intimidated or put out due to the male presence. The thought this other partners will help them in the long run is pure delusion.
FWIW I have a DH, we are due no 2 in January and my local hospital doesn't do the 24/7 visiting (thank god!) but even if t did I would not want DH to stay with me - we could if we wanted as we have good family who can sort childcare, but both of us have discussed on the back of this thread and we both agreed it's not appropriate and we wouldn't want to put others in that situation. So not all of us with supportive DHs would take that option.
I'd like to reiterate again NO ONE is saying that men should never be on maternity wards. Just not for 24 hours. When you can't reach an agreement decent human beings compromise, and for me 12 hours during the day would be a decent compromise. But no, some people have to have it all and have unlimited access, they don't want to compromise - fuck other women, fuck the single mothers, fuck the most vulnerable.
Also I loathe that women are told that their health doesn't matter as long as baby is OK. This "babies will be neglected" is utter bollocks. Babies have very basic needs - 3 really, food, nappy changes and comfort. The vast majority of women can provide this alone in a postnatal Ward. For those who struggled (me included) there are ways to make it easier (co-sleeping, close cot, BF peer supporter etc). For those who still struggle, HCPs are there to do basics like hand you your baby. I appreciate this isn't always quick but it's a resource that is there.
Mothers in a postnatal state DO NOT have just 3 basic needs. We're far more complex creatures and even with the smoothest of births mothers will, for the most part, have many more health issues than their babies. Saying "well your baby is more important so suck it up" is gaslighting bullshit and that attitude is in part why we receive such shitty maternity care, so I don't think a thread about how to make maternity care better is the place to laud this belief.