True, but much depends on your ability to improvise. I never carry a tent because I prefer to sleep in a simple shelter (poncho lean-to) that takes just a few minutes longer to build than pitching a tent. I carry a poncho as part of my rain gear all the time anyway and my sleeping bags are not overly heavy. So sleeping in the bush does not really require all that much gear, at least if you can live without the kind of comfort provided by a Coleman stove, folding chairs, family-sized tent, inflatable sleeping pads and whatnot.

Keep it simple and you'll see you can enjoy the great outdoors with very little gear. All you need are a few basic skills such as starting a fire (plus outdoor cooking), setting up a simple shelter, finding and purifying water and food where and when available to live off the land as much as possible.