The Universe, as has been observed before, is an unsettling big place. The fact which, for the sake of a quiet life, most people tend to ignore. Many would happily move to somewhere rather smaller of their own devising, and this is what most beings, in fact, do.
For instance, in one corner of the Eastern Galactic Arm lies the great forest planet Oglaroon. The entire ‘intelligent’ population of which lives permanently in one fairly small and crowded nut tree.
In which tree they’re born, live, fall in love, carve tiny, speculative articles in the bark on the meaning of life, the futility of death, and the importance of birth control, fight a few - very minor - wars, and eventually die strapped to the underside of some of the less accessible outer branches.
In fact, the only Oglaroonians who ever leave their tree at all are those who are hurled out for the heinous crime of wondering whether any of the other trees might be capable of supporting life at all, or indeed be anything other than illusions brought on by eating too many Oglanuts.
Exotic though this behaviour may seem, there is no life-form in the galaxy not in some way guilty of the same thing.