JSFiddle - React, Tailwind, and code Playground

HTML

<div class="standardText"><span class="boldText">All Stores:</span> 
                <input id="script_all_stores_true" name="govNav" type="radio" value="Y" /> Yes 
                <input checked="checked" id="script_all_stores_false" name="govNav" type="radio" value="N" /> No
            </div>

<div id="govNavYes">Hello</div>

JavaScript

$("[name='govNav']").change(function(){
     if($(this).val()=="Y"){
       $('#govNavYes').show();   
     }else {
       $('#govNavYes').hide();   
     }
  });