Thanks again to Dreamwood for the Question!
I chatted with Dreamwood a bit on the specifics of the question and I wanted to answer it from a few angles, though the short answer is yes! Drekir can and sometimes do live alone in the woods.
First there is the angle of “feral kids”
Which was my first interpretation of the question. Of course drekir are not exactly fantastic parents and so I could definitely see a drek laying an egg in the wilderness, just to walk away and assume it may freeze or overheat and die before it could ever hatch, rather than just breaking it or carrying it with them. Though if that egg does wind up hatching in the middle of nowhere, what happens?
Of course as discussed on this site, Drekir offspring are quite self sufficient, an understandable adaptation for having naturally lax parents. So while that drek kid may very well die from predators, or exposure, there is a reasonable chance that they survive in the long term. Though the result would be a feral drek child or even a feral adult with some rather extreme psychological trauma.
Drekir grow up in dense social groups and so if deprived of that, in addition to presumably dealing from trauma from a usually harrowing constant state of lonely survival, they would likely also have problems with learning language and social norms effectively and may have a lot of psychological issues of depression and anxiety. I imagine most feral kids, if they do have contact with other communities would likely find aid from those communities (parents aren’t that neglectful).
And there is the angle of Hermits and Loners
Or adult drekir who just choose as adults to live alone! Which isn’t impossible!.. But it is rather rare. Drekir are highly social as a species and so for most, even the highly introverted, they would part of a social web that they can actively or passively be around. But inevitably there will be drekir who choose to live completely alone, either as hermits in quiet hovels and shelters out alone, or those who see no reason to integrate into a new den.
Their stories may surely vary, they may be the last survivor of a den that was massacred and just can’t bring themselves to integrate into another den. They could be a drek that was exiled from their hatch den, but instead of joining into a bandit den, they chose instead to just live a solitary life. Usually speaking the reason a drek has chosen to live as a hermit or loner is not usually tied to a happy story. In terms of subsistence a lone drek could surely make it work. If they know the local plants and insects they could feed themselves day to day, and perhaps the craftier of them may live rather well off of things like fish, small game hunting, or even small insecultural practices. Psychologically I imagine there may be some baggage, aside from the (usually) sad stories that resulted in their lonely existence, that lack of steady social interaction may be taxing on them. Not that they would be always alone, I am sure they may get some social interaction from various travelers making their way by their hut for whatever reason, though those social interactions would likely be rather infrequent and irregular.
The way surrounding communities may treat the loners and hermits of their regions I am sure it would vary just as much by personal circumstances as cultural norms and expectations. Perhaps a specific hermit, like Rick from The Long Hike, is treated well by the people that live around them and given supplies. Others in other contexts may be seen as cursed individuals or there may be bad blood between that specific hermit and the society around them. In any case it can vary a lot, it’s definitely possible to live alone in the DragonScape! Though usually the reasons for being a loner often spur from rather tragic or dark pasts for those who live that life.
Hope that answers that!