Accessing an objects method in a nested obj, feed back please

let obj={
    log:function(){
        console.log("it logged");
    },
    nestedObj: {
        log1:function(){this.log()},/*returns error this.log is not a function, 
                           which is understandable since this refers
                            to the nearest object*/
        log2:function(){ obj.log()}/*returns error obj.log is not a function, I'm assuming
                             because I'm calling the object in  its declaration so it 
                             doesn't exit yet???? which is odd because, I thought 
                             variable declarations are hoisted to the top leaving their 
                            values unhoisted, so  do objects not work the same way, 
                            are they not hoisted??????????????*/
    }   
}

/*if I need to use an object's method in one of its nested object' s
 methods, the only way I can think to do it would be like this*/
let obj={
    log:function(){
        console.log("it logged");
    },
    nestedObj: {}   
}
obj.nestedObj.log2= function(){ obj.log()};
/*this seems slightly hacking though
MY QUESTIONS ARE (1)is there a reason objects aren't hoisted? 
(2) The fact that I need to write it this way makes me think maybe is bad
 practice, so is it bad practice?
and (3) since you cant use the this keyword in nested objects to access a
 method in a parent obj, could this effect the codes reusablity? 
(4)could it possibly have negative effects?
finally (5) is there possibly a better way of accomplishing this?*/


/*the reason I'm asking this is because I realized if I next any deeper object
 in this currency declaration, I might lose access to the moneyConvert method,
 which is a a bit odd because that makes me think there is a limit to encapsulation,
unless I'm misunderstanding something*/
let currency={
     playerCopper: player.inventory.money.copper,
     playerSilver: player.inventory.money.silver,
     playerGold: player.inventory.money.gold,
     moneyConvert: ()=>{    
        if(this.playerCopper<=100) {
                this.playerCopper-=100;
                this.playerSilver+=1;
        }
        else if(this.playerSilver<=100){
            this.playerSilver-=100;
            this.playerGold+=1;
       }
    },
    copper: {
        addCopper: (to,amount)=>{
            if(to==="player"){
                this.playerCopper+=amount;
                    }
                else{
                    to+=amount;
                }
            this.moneyConvert();
            }
        },
    silver:{
        addSilver: (to,amount)=>{
            if(to==="player"){
                this.playerSilver+=amount;
            }
            else{
                to+=amount;
            }
            this.moneyConvert();
        }   
    },
    gold:{
        addGold: (to,amount)=>{
            if(to==="player"){
                this.playerGold+=amount;
            }
            else{
                to+=amount;
            }
            this.moneyConvert();        
        }
    }       
};