Have you ever seen it before? You’ll find this link tag inside almost every WordPress theme you dig up.
Most people include it as it comes with every default WordPress theme such as twentyseventeen.
If you are like me, you would want to understand every piece of code that you write inside your WordPress theme.
So, why do you need to define charset on the HTML documents anyway?
Something like “charset” exists because of the conflict between us(the humans) and the computer. We are good at consuming words with characters like A,B,C,D,a,b,&, ) etc. Because that’s the way, we communicate or pass around information.