I don’t have an issue with single sex wards, I can see why many patients would prefer them. I don’t think it’s really a safety issue though, it is more about dignity and comfort.
Providing this as a universal model is not going to be simple or cheap. If you want it, are you willing to pay for those changes to be implemented?
There are specific issues with regards to admission wards- these are by definition emergency admissions and not predictable. Bed occupancy in these units is usually near, or more often at, 100%. If you make them 100% single sex you would have to increase bed capacity significantly to ensure enough beds for acute admissions of either sex. That is not going to cheap, or quick, and it’s not necessarily going to be easy to find staff. Not saying it can’t be done, but how will the extra costs for it to be rolled out in every hospital be met? Taking money from existing budgets- this will impact on care, waiting times etc.
Some newer hospitals were designed with this model in mind, many pre-existing units are not and whilst I suspect some could be restructured within the existing hospital others will not.
In general I would say in order to provide single sex wards (as opposed to single sex bays, each with it’s own bathroom, within a mixed sex ward) you would need massive investment in infrastructure and staff. Most wards are arranged by specialty- e.g respiratory, cardiology, general surgery, urology etc- and then there are the acute receiving units (medical and surgical). In order to provide dedicated single sex wards for each speciality you would need to double the number of wards- possibly increasing the number of beds too. Some hospitals have the space, many don’t so you are talking mass rebuilding of hospital's and recruit extra staff to match. The only alternative would be to somehow restructure the existing building to separate the wards in half. This would still be expensive.
Again, I don’t say this as an excuse not to do anything- it can be done, of course it can. But the cost of overhauling existing hospitals and recruiting extra staff is not going to be cheap, quick or easy- the issue is, in my experience, is that people underestimate the costs and complications of making major changes and experience to it to be done NOW without any impact on services. Simply put, unless specific funding were to be allocated, it cannot be done within existing budgets without impact on wider patient care.