Positive charges are generally not free to move in conventional solid, liquid, or gaseous media. In atomic structure, the positive charge is mainly carried by protons, which are located in the center of the nucleus and are held in place by neutrons and strong interaction forces. In most materials other than condensed matter such as metals, the nucleus (and its positive charge) hardly leaves its place, but only moves in motion.
However, in some cases, such as in the plasma state (the fourth state of matter at high temperatures, in which electrons are separated from the nucleus), positive ions (atoms or molecules with a positive charge) are mobile. In addition, in the electrolyte, ions, including positive ions, can move through the solution.
Inside conductors, especially in metallic conductors, although the positive charge does not move directly, the conduction of the current can be achieved through the flow of electrons, and the effect caused by the movement of the electrons is that the positive charge appears to "move" in the opposite direction, which is due to the change in the distribution of the electron cloud around the positive charge, which is manifested as a relative movement in the region of the positive charge.
In summary, in everyday circuits and most physical and chemical processes, what we mean by "moving positive charge" actually refers to the movement of negative charge (i.e., electrons), while under certain conditions such as plasma or ionic solution, positive ions themselves can indeed move.