If you have been in crypto world for quite a long time now, maybe you're used to seeing things that are so difficult to understand and is ripping your mind off because clearly its just hard to understand. If you're new in this field i am aware that its even hard to understand so because you're a rookie
But to be honest, no matter how much we think that something is hard, we will get to a point where plenty of answers would be visible in our eyes and now you don't know what to believe at this point, read this article about ERC20 Tokens and the Ethereum Ecosystem and only believe it: https://blog.kucoin.com/etheruem-ecosystem-guide-to-erc-tokens-sk-st