Soldiers and Lists Class (reference)

using System.Collections.Generic;
using UnityEngine;

public class Soldiers {
    private int age;
    private string rank;
    private string name;

    private List<int> soldierAgeList = new();
    private List<string> rankList = new();
    private List<string> soldiersNamesList = new();



    public void AddToList(int age) {

        soldierAgeList.Add(age);
    }

    public void AddToList(string rank) {

        rankList.Add(rank);
    }

    public void AddToNameList(string name) {

        soldiersNamesList.Add(name);
    }

    public void RemoveFromSoldierAgeList(int value) {

        soldierAgeList.Remove(value);
    }

    public int GetSoldierAgeList(int index) {

        return soldierAgeList[index];
    }

    public int CountTheList(List<int> soldierAgeList) {

        return soldierAgeList.Count;
    }

    public int CountTheList(List<string> rankList) {

        return rankList.Count;
    }

    public int CountTheNameList(List<string> soldiersNamesList) {

        return soldiersNamesList.Count;
    }

    public List<int> GetAllListValues(List<int> soldierAgeList) {

        return soldierAgeList;
    }

    public void PrintAllListValues() {

        List<int> result = GetAllListValues(soldierAgeList);
        foreach (int value in result) {
            Debug.Log(value);
        }
    }

    public void PrintAllListValuesOnTheSameLine(List<int> soldierAgeList) {

        string joinedList = string.Join(", ", soldierAgeList);
        Debug.Log(joinedList);
    }

    #region Setters & Getters
    public void SetAge(int age) {

        this.age = age;
    }

    public int GetAge() {

        return age;
    }

    /* public void SetRank(string rank) {


     }

     public void SetRank() {

         SetRank();
     }*/

    public void SetRank(string rank) {

        this.rank = rank;
    }

    public string GetRank() {

        return rank;
    }

    public void SetName(string name) {

        this.name = name;
    }

    public string GetName() {

        return name;
    }

    public void SetSoldierAgeList(List<int> soldierAgeList) {
        this.soldierAgeList = soldierAgeList;
    }

    public List<int> GetSoldierAgeList() {
        return soldierAgeList;
    }
    #endregion
    //get all the list values printed at the same time
    public override string ToString() {
        return $"{name}, {rank}, {age}";
    }
}