I've done lots of camping/trekking. Primarily many wilderness areas in North America. I've always gone alone. I did a trip once across an area above the Arctic Circle.
A lot of my trips I've been dropped off at one point, crossed a wilderness area, and been picked up at a different location.
I take a single tent, sleeping bag, water filtration/purification, spare clothing, map, compass, knife, firearm (always a high powered pistol and sometime I include a rifle), a fire starter kit, food, a personal locator beacon.
I've not met many people who enjoy the types of camping I do and I can understand that and that is one of the many reasons I go alone