> They are the first to notice how many people around them are taking pictures
True. I notice this a lot in museums, at historical sites, at the summit on mountain hikes, and indoor concerts. And no, I don't want to enjoy a concert through the iPads of the people in front of me and holding them up with no regard to the people behind them either
> worrying how themselves would look if they did the same, sometimes wanting deep down to do the same but held back by their own perceived judgement of others potentially turning on them.
...yea, lost me there. Going places because of an interest in the museums content or a locations outdoor experience and having other people around these same points of interest but facing you instead of the {thing} is highly noticeable, and from my lens, strange(as in difficult for me to relate) that the {thing}'s appeal appears to be only as a backdrop to the selfies. The ones that walk up, take the many selfies and move on to the next POI/selfie-spot. I am sure many people enjoy {thing} and then take a quick single selfie and move on to enjoy next {thing}, but I never make note because they didn't spend the entire moment standing in front of {thing} facing others and taking a roll of films worth of slightly different snapshots of themselves.
Have you considered that maybe your "live in the moment" crowd, is living in the moment by noticing others around them and making that observation is not in itself a judgment of anything. Unlike the iPad concert broadcasting crowd or the selfie-enthusiast/collector that runs up to {thing} and leans against the information plaques while having no awareness of the people standing near by reading it.