As you know, the player is lost all his things that are worn on him or are in the inventory if he dies. Locations such as the edge or lower world are simply filled with deadly traps. When searching for rare resources, you have to climb deep underground to explore mines. There are a lot of monsters in them. There is a high probability of dying from them. Find the place of death to pick up the fallen things is almost unrealistic.
Therefore, it is better to introduce a special team that will maintain all the experience and things of your hero. Team /Gamerule Keepinventory True allows you not to lose things from the inventory after death.