I imagine it wouldn't be profitable at all, but I would love services like flights, resturants, movies, etc that were adult only. Would be nice to just not have to deal with it.
It's unavoidable and a part of life you just have to deal with though. You roll your eyes, you turn up the noise cancelling on your headphones and you deal with it. But at the same time, parents should do all they can to keep their kids quiet and well behaved and maybe consider whether flights before their child is even a toddler are the best idea.
Far too reasonable for this thread. You have to pick a side. You either have to believe that parents and children bare no responsibility for their intrusions on strangers lives or you have to believe that all babies should be exiled from public spaces until they are old enough to behave.
Choose.
Edit: /s cause this thread is ridiculous enough to need it.
My wife and I picked an adult-only hotel for our honeymoon. It's fucking glorious. One of our fondest memories ever, and we cherish it even more now with third kid on her way to wreck havoc to our ears in a few short months.