I guess I have a different perspective ....
What do you NEED?
Access to water, good health, and keep your wits about you.
Your priorities, in order are .....
1.)Thermoregulation. You have to keep your core temperature regulated ... cool in the heat and warm in the cold. Learn how to build a basic shelter and how to build a fire. Let me repeat that .... basic shelter and fire. Camp on hillsides, ridges are windy and cold air falls to lowest ground. You can break grainy rocks on each other to make a basic knife. Vines and bark strips can make basic cordage.
2.) Hydration. Two days, three if your not active and pushing it, is the limit without water. lick the dew off leaves if you have to. Old beer/pop cans, bottles, or other trash can make containers to boil water in if necesssary.
3.) Navigation. There's not a mountain range in the US that you can't hike out of in 5 days if you know where you're at and how to find your way. Basics like ... which direction does the sun come up and go down in, Which star is the north star, how to read a map and compass.
4.) Food - last priority ... even someone with 15% bodyfat can survive without food for three weeks. The average for people in the US is a Body Fat percentage in the 20's. That can push to four weeks without permanent organ damage if you conserve energy and fat. Survival food is abundant in the wild ... insects, grubs, earthworms, minnows, and learn the univeral edible test for plants. Even the bark of many trees is edible. It's not particularly tasty, but native american people lived on this stuff for thousands of years when they needed to, like in harsh winters.
The most important thing is the one thing this survivor had in abundance .... a positive mental outlook. Without it people will just lay down and die. You have to stay positive and stay alert.
A tent, Sleeping bag, and a good knife are certainly upsides.