I mean, you've got a survey here finding over a million people using coworking spaces, of which more than half are single founders or freelancers.
I'm pretty sure most of them aren't there mainly to avoid noisy kids.
Due to my experiences I've met a LOT of people in coworking spaces all over the world and I would say that my general take is pretty consistent. People pay into a coworking space to guarantee a space that work can be done when they're traveling. Very few of my fellow coworkers permanently reside in the same city as the coworking space they frequent. This, also, is why networks of coworking spaces like WeWork are doing so well. WeWork in particular enables me to go to many destination cities and have a spot to work without needing to pre-plan to work with a local space.
However, the other major NYC WeWorks (SoHo, Midtown, Madison) have much more the vibe you describe. Well... Madison is basically just offices.
If WeWork is your only or primary experience of co-working, I think you picked the right space for the vibe you're saying you like.
However, other major open plan office spaces - TechStars, Alley, and so on, do very much specifically cater to and create an affirmative open plan vibe and the people who prefer that.
Office spaces that share with or are primarily incubators often have a set up that allows for pitch practice right on the floor. This is a little hectic even for me. :-)
Still, if nomadic workers are finding it easier to "guarantee that work can be done" by booking a coworking space rather than spending that cash on a bigger AirBnB/hotel room promising a desk and fast WiFi it's an indication that at least some of the time they consider an office shared with other people working a preferable working environment to the solitude of an empty bedroom.
This is a risk you can't take as a business-person in a lot of ways. There's many places in the world that are great to visit and travel to, but that simply don't have acceptable quality of residential Internet connections. For example, I was in Rabat, Morocco a few months ago and was able to work effectively because I had a coworking space with fiber Internet connectivity, meanwhile the best broadband connection on offer to residential addresses was similar in performance to 56k dial-up in most of the rest of the world.
The part that makes a coworking space a preferable working environment isn't the lack of solitude, it's the guarantee of high performance Internet connectivity.
I worked from Morocco last month, so I'd be the first to concede their internet isn't particularly good by developing world standards, but there are an awful lot of remote workers for whom a 200 dirham dongle would do the trick. Not to mention an abundance of coworking spaces in London, where domestic wifi tends to be excellent, many of which are geared mostly or exclusively to permanent residents.