You also have the person on the far left lying down while charging his phone. He is taking an action of turning a liminal space to a home. Due to how I shot the photo, he is separated from the rest of the space by wall, further enforcing that he has claimed what should be a liminal space as his personal space.

That is no more an act of turning a place into a home than a homeless person finding an outlet in, or outside of a strip mall, lying down and charging their phone from it, where he would likely also be given a wide berth by passersby.

Neither my homeless man nor your subject has any reasonable expectation of unfettered ability to return whenever they please, stay as long as they want, to customize the area, to prevent others from entering into 'his' space, nor to the any of the private activities commonly associated with a specifically private residence.

They'd be escorted out by security if they attempted that, arrested if he makes a habit of returning, seeking shelter there during all the freezing winter nights.

It is just another temporary resting stop on the highway of life, another falling platform in a game with platforms that fall apart if you don't keep jumping to new ones.

His claim to this space is transient, temporary, and this is enforced by implied, and then actual violence should he linger or attempt to actually inhabit the space.

Any other notion is illusory, not well thought out, delusional.

EDIT: i realize that was all rather harsh.

Other than my above, lengthy disagreement, I agree with everything else you've said, and I do think it is a very good photograph that does portray liminality well!

EDIT 2: Well, the bar is an interesting case.

Its liminal in that... its an airport bar, not usually somewhere most people, other than absurdly frequent flyers and I guess flight staff are likely to return to regularly.

Its more liminal than a more conventional bar that say you and your buddies go every weekend.

....But all bars still have closing times, haha.