Single people or couples don't want doorless bathrooms, but they will probably tolerate them if forced into a room with that setup. Other types of travelers might not be so open-minded, and that's the point that OP is arguing about. Provide the bare minimum tolerable experience to your target audience and punish the customers you don't want.
Make sure to address the elephant in the room - privacy. Consider installing electrochromic glass panels that switch from clear to opaque. Or take inspiration from Japanese architecture with sliding wooden screens that double as art pieces.
And a third type, people who have had children so have gone through the toddler stage where a toddler would literally chainsaw and burn down a locked door before they let you have 3 seconds of peace to take a shit.
That's actually a very valid point I hadn't taken into consideration.
If you're single or have a partner that you're comfortable with, open concept bathrooms feel luxurious. But if you need sanctity and salvation from the kids, I can get it.
The real issue is when they're old enough to reach the lock, but not old enough to trust not to destroy things or injure themselves if left unsupervised.
I’ve actually ended otherwise decent relationships early because the other person was way too coy/upset with bodily functions like farting and pooping. If we’er sleeping together I expect us to be farting together. And if we are living together I expect us to be using the toilet in front of each other. Anything less is both inconvenient and reflective of deep personality conflicts that will never be resolved.
I have never in my life imagined that someone might break up with another person for the sole reason that the person refused to poop in front of them. That is honestly wild to me, but I appreciate your perspective, thanks for sharing.
If you flush the toilet at precisely the moment after you take a shit, the vacuum force of the toilet venting down the waste line will pretty much keep that from happening. That's basically prison rules.